2/21/2019 Chapter4TestAbraham Haje - HCC Learning Web
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2/21/2019 Chapter4TestAbraham Haje https://xlitemprod.pearsoncmg.com/api/v1/print/math 1/15 1. 2. 3. Student: _____________________ Date: _____________________ Instructor: Abraham Haje Course: Math 1342 Statistics T TH 12:30PM1:50PM Assignment: Chapter4Test The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has less than two cars. Cars Households 0 125 1 428 2 256 3 108 4 83 A. 0.553 B. 0.809 C. 0.428 D. 0.125 The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has between one and three cars, inclusive. Cars Households 0 125 1 428 2 256 3 108 4 83 A. 0.125 B. 0.208 C. 0.256 D. 0.792 Determine the probability distribution's missing value. The probability that a tutor will see 0, 1, 2, 3, or 4 students x 0 1 2 3 4 P(x) 1 7 8 35 1 7 ? 4 35 A. 13 35 B. 18 35 C. 2 5 D. − 2 7
Transcript of 2/21/2019 Chapter4TestAbraham Haje - HCC Learning Web
Student: _____________________
Date: _____________________
Instructor: Abraham Haje Course: Math 1342 Statistics T TH 12:30PM1:50PM
Assignment: Chapter4Test
The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has less than two cars.
Cars Households
0 125
1 428
2 256
3 108
4 83
A. 0.553 B. 0.809 C. 0.428 D. 0.125
The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has between one and three cars, inclusive.
Cars Households
0 125
1 428
2 256
3 108
4 83
Determine the probability distribution's missing value. The probability that a tutor will see 0, 1, 2, 3, or 4 students
x 0 1 2 3 4
P(x) 1 7
Determine the probability distribution's missing value. The probability that a tutor will see 0, 1, 2, 3, or 4 students
x 0 1 2 3 4
P(x) 0.29 0.44 0.08 0.16 ?
A. − 0.76 B. 0.97 C. 0.27 D. 0.03
The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable x.
x P(x) 0 0.125 1 0.375 2 0.375 3 0.125
A. mean: 1.50 standard deviation: 0.87 B. mean: 2.25 standard deviation: 0.87 C. mean: 2.25 standard deviation: 0.76 D. mean: 1.50 standard deviation: 0.76
The random variable x represents the number of tests that a patient entering a hospital will have along with the corresponding probabilities. Find the mean and standard deviation.
x 0 1 2 3 4
P(x) 3 17
5 17
6 17
2 17
1 17
A. mean: 1.59 standard deviation: 1.09 B. mean: 1.59 standard deviation: 3.71 C. mean: 3.72 standard deviation: 2.52 D. mean: 2.52 standard deviation: 1.93
The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. Find the mean and standard deviation.
x P(x)
0 0.07
1 0.68
2 0.21
3 0.03
4 0.01
A. mean: 1.30 standard deviation: 0.32 B. mean: 1.23 standard deviation: 0.44 C. mean: 1.23 standard deviation: 0.66 D. mean: 1.30 standard deviation: 0.44
2/21/2019 Chapter4TestAbraham Haje
8.
9.
10.
11.
12.
13.
14.
One thousand tickets are sold at each. One ticket will be randomly selected and the winner will receive a color television valued at . What is the expected value for a person that buys one ticket? Round the answer to the nearest cent.
$2 $372
A. $1.63 B. $1.00 C. − $1.63 D. $1.00−
If a person rolls doubles when tossing two dice, the roller profits , that is, the roller receives more than the cost of the game. If the game is fair, how much should the person pay to play the game?
$95 $95
A. $94 B. $19 C. $92 D. $95
At a raffle, 10,000 tickets are sold at $5 each for three prizes valued at $4,800, $1,200, and $400. What is the expected value of one ticket?
A. $0.64− B. $4.36− C. $0.64 D. $4.36
In a raffle, 1,000 tickets are sold for $2 each. One ticket will be randomly selected and the winner will receive a laptop computer valued at $1200. What is the expected value for a person that buys one ticket?
A. $0.8 B. $0.80− C. $1.20 D. $1.20−
State whether the variable is discrete or continuous. The number of cups of coffee sold in a cafeteria during lunch
continuous discrete
State whether the variable is discrete or continuous. The height of a player on a basketball team
discrete continuous
State whether the variable is discrete or continuous. The cost of a statistics textbook
discrete continuous
15.
16.
17.
18.
19.
20.
21.
State whether the variable is discrete or continuous. The blood pressures of a group of students the day before their final exam
discrete continuous
State whether the variable is discrete or continuous. The temperature in degrees Fahrenheit on July 4th in Juneau, Alaska
continuous discrete
State whether the variable is discrete or continuous. The number of goals scored in a soccer game
continuous discrete
State whether the variable is discrete or continuous. The speed of a car on a Los Angeles freeway during rush hour traffic
discrete continuous
State whether the variable is discrete or continuous. The number of phone calls to the attendance office of a high school on any given school day
discrete continuous
State whether the variable is discrete or continuous. The age of the oldest student in a statistics class
discrete continuous
State whether the variable is discrete or continuous. The number of pills in a container of vitamins
discrete continuous
22.
23.
24.
25.
26.
Determine whether the number line represents a discrete random variable or a continuous random variable. Explain your reasoning.
The attendance at games for a sports team
15000 17500 20000 22500 25000
Continuous Attendance is a random variable that must be measured. Discrete Attendance is a random variable that is countable.
Determine whether the number line represents a discrete random variable or a continuous random variable. Explain your reasoning.
The length of time college students study each week
8 12 16 20 24
Discrete Time is a random variable that is countable. Continuous Time is a random variable that must be measured.
Find the mean of the binomial distribution for which n and p 0.2. Round the answer to the nearest hundredth, as needed.
= 30 =
A. .0030 B. 15.00 C. 2.19 D. 6.00
Find the variance of the binomial distribution for which n and p 0. . Round the answer to the nearest hundredth.= 900 = 85
A. 32.54 B. 114.75 C. 765.00 D. 10.71
A test consists of true or false questions. If the student guesses on each question, what is the mean number of correct answers?
720
2/21/2019 Chapter4TestAbraham Haje
27.
28.
29.
30.
31.
32.
A test consists of true or false questions. If the student guesses on each question, what is the standard deviation of the number of correct answers? Round the answer to the nearest hundredth.
70
A. 0.00 B. 4.18 C. 5.92 D. 2.00
In a recent survey, 80% of the community favored building a police substation in their neighborhood. If 15 citizens are chosen, what is the mean number favoring the substation?
A. 10 B. 15 C. 8 D. 12
The probability that a house in an urban area will be burglarized is 5%. If 20 houses are randomly selected, what is the mean of the number of houses burglarized?
A. 1.5 B. 10 C. 1 D. 0.5
In one city, % of adults smoke. In groups of size of adults, what is the variance of the number that smoke? Round the answer to the nearest hundredth.
34 150
A. 5.80 B. 33.66 C. 51.00 D. 16.83
A test consists of multiple choice questions, each with five possible answers, only one of which is correct. Find the mean and the standard deviation of the number of correct answers. Round the answers to the nearest hundredth.
60
A. mean: standard deviation: 30.00 5.48 B. mean: standard deviation: 12.00 3.10 C. mean: standard deviation: 30.00 3.10 D. mean: standard deviation: 12.00 3.46
A recent survey found that % of all adults over 50 wear glasses for driving. In a random sample of adults over 50, what is the mean and standard deviation of those that wear glasses? Round the answers to the nearest hundredth.
67 50
A. mean: standard deviation: 16.50 3.32 B. mean: standard deviation: 33.50 5.79 C. mean: standard deviation: 16.50 5.79 D. mean: standard deviation: 33.50 3.32
2/21/2019 Chapter4TestAbraham Haje
33.
34.
35.
36.
37.
According to government data, the probability that a woman between the ages of 25 and 29 was never married is 40%. In a random survey of 10 women in this age group, what is the mean and standard deviation of the number that never married?
A. mean: 6 standard deviation: 155 B. mean: 4 standard deviation: 2.4 C. mean: 6 standard deviation: 1.55 D. mean: 4 standard deviation: 1.55
According to police sources, a car with a certain protection system will be recovered of the time. If stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen? Round the answers to the nearest hundredth.
95% 100
A. mean: standard deviation: 95.00 2.18 B. mean: : standard deviation: 1.00 2.18 C. mean: : standard deviation: 1.00 4.75 D. mean: standard deviation: 95.00 4.75
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of exactly boys in ten births. Round the answer to the nearest thousandth.
five
A. 0.246 B. 0.500 C. 7.875 D. 0.050
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of at most three boys in ten births.
A. 0.300 B. 0.003 C. 0.333 D. 0.172
A test consists of 10 true or false questions. To pass the test a student must answer at least eight questions correctly. If the student guesses on each question, what is the probability that the student will pass the test?
A. 0.080 B. 0.800 C. 0.200 D. 0.055
2/21/2019 Chapter4TestAbraham Haje
38.
39.
40.
41.
42.
43.
In a recent survey, % of the community favored building a police substation in their neighborhood. If 14 citizens are chosen, find the probability that exactly of them favor the building of the police substation. Round the answer to the nearest thousandth.
64 10
A. 0.714 B. 0.006 C. 0.194 D. 0.640
The probability that an individual is lefthanded is . In a class of students, what is the probability of finding five lefthanders? Round the answer to the nearest thousandth.
0.180 46
A. 0.000 B. 0.109 C. 0.180 D. 0.076
A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of 10 adults over 50, what is the probability that at least six wear glasses?
A. 0.200 B. 0.700 C. 0.006 D. 0.850
According to government data, the probability that a woman between the ages of 25 and 29 was never married is 40%. In a random survey of 10 women in this age group, what is the probability that at least eight were married?
A. 0.167 B. 0.161 C. 0.013 D. 1.002
According to police sources, a car with a certain protection system will be recovered of the time. Find the probability that of stolen cars will be recovered. Round the answer to the nearest thousandth.
91% 4 6
A. 0.090 B. 0.910 C. 0.083 D. 0.667
The probability that a tennis set will go to a tiebreaker is %. What is the probability that two of three sets will go to tiebreakers? Round the answer to the nearest thousandth.
16
2/21/2019 Chapter4TestAbraham Haje
44.
45.
46.
47.
48.
49.
The probability that a house in an urban area will be burglarized is %. If houses are randomly selected, what is the probability that none of the houses will be burglarized?
4 51
A. 0.001 B. 0.125 C. 0.040 D. 0.000
Sixtyfive percent of men consider themselves knowledgeable football fans. If men are randomly selected, find the probability that exactly of them will consider themselves knowledgeable fans.
11 six
A. 0.545 B. 0.650 C. 0.183 D. 0.099
Basketball player Chauncey Billups of the Detroit Pistons makes free throw shots 88% of the time. Find the probability that he misses his first shot and makes the second.
A. 0.1056 B. 0.7744 C. 0.0144 D. 0.5000
A statistics professor finds that when he schedules an office hour at the 10:30 a.m. time slot, an average of three students arrive. Use the Poisson distribution to find the probability that in a randomly selected office hour in the 10:30 a.m. time slot exactly will arrive.five students
A. 0.0070 B. 0.0519 C. 0.1008 D. 0.0137
A statistics professor finds that when he schedules an office hour at the 10:30 a.m. time slot, an average of three students arrives. Use the Poisson distribution to find the probability that in a randomly selected office hour no students will arrive.
A. 0.0743 B. 0.1108 C. 0.0498 D. 0.1225
A sales firm receives an average of four calls per hour on its toll free number. For any given hour, find the probability that it will receive exactly calls. Use the Poisson distribution.
− eight
2/21/2019 Chapter4TestAbraham Haje
50.
51.
52.
53.
54.
A mailorder company receives an average of five orders per 500 solicitations. If it sends out 100 advertisements, find the probability of receiving at least two orders. Use the Poisson distribution.
A. 0.2642 B. 0.9048 C. 0.1839 D. 0.9596
A local fire station receives an average of 0.55 rescue calls per day. Use the Poisson distribution to find the probability that on a randomly selected day, the fire station will receive fewer than two calls.
A. 0.894 B. 0.087 C. 0.106 D. 0.317
A car towing service company averages two calls per hour. Use the Poisson distribution to determine the probability that in a randomly selected hour the number of calls is .six
A. 0.0120 B. 0.0001 C. 0.0068 D. 0.0002
Decide which probability distributionbinomial, geometric, or Poissonapplies to the question. You do not need to answer the question.
Given: The probability that a federal income tax return is filled out incorrectly with an error in favor of the taxpayer is 20%. Question: What is the probability that of the ten tax returns randomly selected for an audit, three returns will contain only errors favoring the taxpayer?
A. Poisson B. geometric C. binomial
Decide which probability distributionbinomial, geometric, or Poissonapplies to the question. You do not need to answer the question.
Given: The probability that a federal income tax return is filled out incorrectly with an error in favor of the taxpayer is 20%. Question: What is the probability that of the ten tax returns randomly selected for an audit in a given week, three returns will contain only errors favoring the taxpayer?
A. geometric B. binomial C. Poisson
2/21/2019 Chapter4TestAbraham Haje
55. Decide which probability distributionbinomial, geometric, or Poissonapplies to the question. You do not need to answer the question.
Given: The probability that a federal income tax return is filled out incorrectly with an error in favor of the taxpayer is 20%. Question: What is the probability that when the ten tax returns are randomly selected for an audit, the sixth return will contain only errors favoring the taxpayer?
A. geometric B. binomial C. Poisson
2/21/2019 Chapter4TestAbraham Haje
8. C. − $1.63
22. Discrete Attendance is a random variable that is countable.
23. Continuous Time is a random variable that must be measured.
24. D. 6.00
25. B. 114.75
26. A. 360
27. B. 4.18
28. D. 12
29. C. 1
30. B. 33.66
35. A. 0.246
36. D. 0.172
Instructor: Abraham Haje Course: Math 1342 Statistics T TH 12:30PM1:50PM
Assignment: Chapter4Test
The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has less than two cars.
Cars Households
0 125
1 428
2 256
3 108
4 83
A. 0.553 B. 0.809 C. 0.428 D. 0.125
The random variable x represents the number of cars per household in a town of 1000 households. Find the probability of randomly selecting a household that has between one and three cars, inclusive.
Cars Households
0 125
1 428
2 256
3 108
4 83
Determine the probability distribution's missing value. The probability that a tutor will see 0, 1, 2, 3, or 4 students
x 0 1 2 3 4
P(x) 1 7
Determine the probability distribution's missing value. The probability that a tutor will see 0, 1, 2, 3, or 4 students
x 0 1 2 3 4
P(x) 0.29 0.44 0.08 0.16 ?
A. − 0.76 B. 0.97 C. 0.27 D. 0.03
The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable x.
x P(x) 0 0.125 1 0.375 2 0.375 3 0.125
A. mean: 1.50 standard deviation: 0.87 B. mean: 2.25 standard deviation: 0.87 C. mean: 2.25 standard deviation: 0.76 D. mean: 1.50 standard deviation: 0.76
The random variable x represents the number of tests that a patient entering a hospital will have along with the corresponding probabilities. Find the mean and standard deviation.
x 0 1 2 3 4
P(x) 3 17
5 17
6 17
2 17
1 17
A. mean: 1.59 standard deviation: 1.09 B. mean: 1.59 standard deviation: 3.71 C. mean: 3.72 standard deviation: 2.52 D. mean: 2.52 standard deviation: 1.93
The random variable x represents the number of credit cards that adults have along with the corresponding probabilities. Find the mean and standard deviation.
x P(x)
0 0.07
1 0.68
2 0.21
3 0.03
4 0.01
A. mean: 1.30 standard deviation: 0.32 B. mean: 1.23 standard deviation: 0.44 C. mean: 1.23 standard deviation: 0.66 D. mean: 1.30 standard deviation: 0.44
2/21/2019 Chapter4TestAbraham Haje
8.
9.
10.
11.
12.
13.
14.
One thousand tickets are sold at each. One ticket will be randomly selected and the winner will receive a color television valued at . What is the expected value for a person that buys one ticket? Round the answer to the nearest cent.
$2 $372
A. $1.63 B. $1.00 C. − $1.63 D. $1.00−
If a person rolls doubles when tossing two dice, the roller profits , that is, the roller receives more than the cost of the game. If the game is fair, how much should the person pay to play the game?
$95 $95
A. $94 B. $19 C. $92 D. $95
At a raffle, 10,000 tickets are sold at $5 each for three prizes valued at $4,800, $1,200, and $400. What is the expected value of one ticket?
A. $0.64− B. $4.36− C. $0.64 D. $4.36
In a raffle, 1,000 tickets are sold for $2 each. One ticket will be randomly selected and the winner will receive a laptop computer valued at $1200. What is the expected value for a person that buys one ticket?
A. $0.8 B. $0.80− C. $1.20 D. $1.20−
State whether the variable is discrete or continuous. The number of cups of coffee sold in a cafeteria during lunch
continuous discrete
State whether the variable is discrete or continuous. The height of a player on a basketball team
discrete continuous
State whether the variable is discrete or continuous. The cost of a statistics textbook
discrete continuous
15.
16.
17.
18.
19.
20.
21.
State whether the variable is discrete or continuous. The blood pressures of a group of students the day before their final exam
discrete continuous
State whether the variable is discrete or continuous. The temperature in degrees Fahrenheit on July 4th in Juneau, Alaska
continuous discrete
State whether the variable is discrete or continuous. The number of goals scored in a soccer game
continuous discrete
State whether the variable is discrete or continuous. The speed of a car on a Los Angeles freeway during rush hour traffic
discrete continuous
State whether the variable is discrete or continuous. The number of phone calls to the attendance office of a high school on any given school day
discrete continuous
State whether the variable is discrete or continuous. The age of the oldest student in a statistics class
discrete continuous
State whether the variable is discrete or continuous. The number of pills in a container of vitamins
discrete continuous
22.
23.
24.
25.
26.
Determine whether the number line represents a discrete random variable or a continuous random variable. Explain your reasoning.
The attendance at games for a sports team
15000 17500 20000 22500 25000
Continuous Attendance is a random variable that must be measured. Discrete Attendance is a random variable that is countable.
Determine whether the number line represents a discrete random variable or a continuous random variable. Explain your reasoning.
The length of time college students study each week
8 12 16 20 24
Discrete Time is a random variable that is countable. Continuous Time is a random variable that must be measured.
Find the mean of the binomial distribution for which n and p 0.2. Round the answer to the nearest hundredth, as needed.
= 30 =
A. .0030 B. 15.00 C. 2.19 D. 6.00
Find the variance of the binomial distribution for which n and p 0. . Round the answer to the nearest hundredth.= 900 = 85
A. 32.54 B. 114.75 C. 765.00 D. 10.71
A test consists of true or false questions. If the student guesses on each question, what is the mean number of correct answers?
720
2/21/2019 Chapter4TestAbraham Haje
27.
28.
29.
30.
31.
32.
A test consists of true or false questions. If the student guesses on each question, what is the standard deviation of the number of correct answers? Round the answer to the nearest hundredth.
70
A. 0.00 B. 4.18 C. 5.92 D. 2.00
In a recent survey, 80% of the community favored building a police substation in their neighborhood. If 15 citizens are chosen, what is the mean number favoring the substation?
A. 10 B. 15 C. 8 D. 12
The probability that a house in an urban area will be burglarized is 5%. If 20 houses are randomly selected, what is the mean of the number of houses burglarized?
A. 1.5 B. 10 C. 1 D. 0.5
In one city, % of adults smoke. In groups of size of adults, what is the variance of the number that smoke? Round the answer to the nearest hundredth.
34 150
A. 5.80 B. 33.66 C. 51.00 D. 16.83
A test consists of multiple choice questions, each with five possible answers, only one of which is correct. Find the mean and the standard deviation of the number of correct answers. Round the answers to the nearest hundredth.
60
A. mean: standard deviation: 30.00 5.48 B. mean: standard deviation: 12.00 3.10 C. mean: standard deviation: 30.00 3.10 D. mean: standard deviation: 12.00 3.46
A recent survey found that % of all adults over 50 wear glasses for driving. In a random sample of adults over 50, what is the mean and standard deviation of those that wear glasses? Round the answers to the nearest hundredth.
67 50
A. mean: standard deviation: 16.50 3.32 B. mean: standard deviation: 33.50 5.79 C. mean: standard deviation: 16.50 5.79 D. mean: standard deviation: 33.50 3.32
2/21/2019 Chapter4TestAbraham Haje
33.
34.
35.
36.
37.
According to government data, the probability that a woman between the ages of 25 and 29 was never married is 40%. In a random survey of 10 women in this age group, what is the mean and standard deviation of the number that never married?
A. mean: 6 standard deviation: 155 B. mean: 4 standard deviation: 2.4 C. mean: 6 standard deviation: 1.55 D. mean: 4 standard deviation: 1.55
According to police sources, a car with a certain protection system will be recovered of the time. If stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen? Round the answers to the nearest hundredth.
95% 100
A. mean: standard deviation: 95.00 2.18 B. mean: : standard deviation: 1.00 2.18 C. mean: : standard deviation: 1.00 4.75 D. mean: standard deviation: 95.00 4.75
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of exactly boys in ten births. Round the answer to the nearest thousandth.
five
A. 0.246 B. 0.500 C. 7.875 D. 0.050
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children. Find the probability of at most three boys in ten births.
A. 0.300 B. 0.003 C. 0.333 D. 0.172
A test consists of 10 true or false questions. To pass the test a student must answer at least eight questions correctly. If the student guesses on each question, what is the probability that the student will pass the test?
A. 0.080 B. 0.800 C. 0.200 D. 0.055
2/21/2019 Chapter4TestAbraham Haje
38.
39.
40.
41.
42.
43.
In a recent survey, % of the community favored building a police substation in their neighborhood. If 14 citizens are chosen, find the probability that exactly of them favor the building of the police substation. Round the answer to the nearest thousandth.
64 10
A. 0.714 B. 0.006 C. 0.194 D. 0.640
The probability that an individual is lefthanded is . In a class of students, what is the probability of finding five lefthanders? Round the answer to the nearest thousandth.
0.180 46
A. 0.000 B. 0.109 C. 0.180 D. 0.076
A recent survey found that 70% of all adults over 50 wear glasses for driving. In a random sample of 10 adults over 50, what is the probability that at least six wear glasses?
A. 0.200 B. 0.700 C. 0.006 D. 0.850
According to government data, the probability that a woman between the ages of 25 and 29 was never married is 40%. In a random survey of 10 women in this age group, what is the probability that at least eight were married?
A. 0.167 B. 0.161 C. 0.013 D. 1.002
According to police sources, a car with a certain protection system will be recovered of the time. Find the probability that of stolen cars will be recovered. Round the answer to the nearest thousandth.
91% 4 6
A. 0.090 B. 0.910 C. 0.083 D. 0.667
The probability that a tennis set will go to a tiebreaker is %. What is the probability that two of three sets will go to tiebreakers? Round the answer to the nearest thousandth.
16
2/21/2019 Chapter4TestAbraham Haje
44.
45.
46.
47.
48.
49.
The probability that a house in an urban area will be burglarized is %. If houses are randomly selected, what is the probability that none of the houses will be burglarized?
4 51
A. 0.001 B. 0.125 C. 0.040 D. 0.000
Sixtyfive percent of men consider themselves knowledgeable football fans. If men are randomly selected, find the probability that exactly of them will consider themselves knowledgeable fans.
11 six
A. 0.545 B. 0.650 C. 0.183 D. 0.099
Basketball player Chauncey Billups of the Detroit Pistons makes free throw shots 88% of the time. Find the probability that he misses his first shot and makes the second.
A. 0.1056 B. 0.7744 C. 0.0144 D. 0.5000
A statistics professor finds that when he schedules an office hour at the 10:30 a.m. time slot, an average of three students arrive. Use the Poisson distribution to find the probability that in a randomly selected office hour in the 10:30 a.m. time slot exactly will arrive.five students
A. 0.0070 B. 0.0519 C. 0.1008 D. 0.0137
A statistics professor finds that when he schedules an office hour at the 10:30 a.m. time slot, an average of three students arrives. Use the Poisson distribution to find the probability that in a randomly selected office hour no students will arrive.
A. 0.0743 B. 0.1108 C. 0.0498 D. 0.1225
A sales firm receives an average of four calls per hour on its toll free number. For any given hour, find the probability that it will receive exactly calls. Use the Poisson distribution.
− eight
2/21/2019 Chapter4TestAbraham Haje
50.
51.
52.
53.
54.
A mailorder company receives an average of five orders per 500 solicitations. If it sends out 100 advertisements, find the probability of receiving at least two orders. Use the Poisson distribution.
A. 0.2642 B. 0.9048 C. 0.1839 D. 0.9596
A local fire station receives an average of 0.55 rescue calls per day. Use the Poisson distribution to find the probability that on a randomly selected day, the fire station will receive fewer than two calls.
A. 0.894 B. 0.087 C. 0.106 D. 0.317
A car towing service company averages two calls per hour. Use the Poisson distribution to determine the probability that in a randomly selected hour the number of calls is .six
A. 0.0120 B. 0.0001 C. 0.0068 D. 0.0002
Decide which probability distributionbinomial, geometric, or Poissonapplies to the question. You do not need to answer the question.
Given: The probability that a federal income tax return is filled out incorrectly with an error in favor of the taxpayer is 20%. Question: What is the probability that of the ten tax returns randomly selected for an audit, three returns will contain only errors favoring the taxpayer?
A. Poisson B. geometric C. binomial
Decide which probability distributionbinomial, geometric, or Poissonapplies to the question. You do not need to answer the question.
Given: The probability that a federal income tax return is filled out incorrectly with an error in favor of the taxpayer is 20%. Question: What is the probability that of the ten tax returns randomly selected for an audit in a given week, three returns will contain only errors favoring the taxpayer?
A. geometric B. binomial C. Poisson
2/21/2019 Chapter4TestAbraham Haje
55. Decide which probability distributionbinomial, geometric, or Poissonapplies to the question. You do not need to answer the question.
Given: The probability that a federal income tax return is filled out incorrectly with an error in favor of the taxpayer is 20%. Question: What is the probability that when the ten tax returns are randomly selected for an audit, the sixth return will contain only errors favoring the taxpayer?
A. geometric B. binomial C. Poisson
2/21/2019 Chapter4TestAbraham Haje
8. C. − $1.63
22. Discrete Attendance is a random variable that is countable.
23. Continuous Time is a random variable that must be measured.
24. D. 6.00
25. B. 114.75
26. A. 360
27. B. 4.18
28. D. 12
29. C. 1
30. B. 33.66
35. A. 0.246
36. D. 0.172
