Tues 9/4 & Wed 9/5AGENDA

• Warm up text p.805; 18-23

• Go over homework

• Test Review Game

• Go over review packet

Go over HomeworkP.548; 6-15

Base = 70

-7 pts for each problem not attempted.

10 pts for each correct.

6) Dependent 7) independent

8) ¼ 9) ½ 10) 1/40 11) 5/24

12) 8/51 13) 4/27 14) 0 15) 1/32

19) 0.0049

A bag contains 4 red marbles, 16 yellow marbles and 5 purple marbles. What is the P(red, then purple) if a marble is selected and replaced, and then a 2nd marble is selected?

4/25 • 5/25 = 4/125

License plates in a certain state contain 2 letters followed by 3 digits. Assume that all combinations are equally likely. Find the number of possible license plates.

26•26•10•10•10 = 676,000

There are 52 cards in a deck. What is the

probability of drawing a four, replacing it, and then drawing a face

card?

4/52 • 16/52 = 4/169

At the ice cream shop, there are 10 flavors

and 3 cones to choose from. How many

possible outcomes are there?

3 • 10 = 30

If A and B are independent events such that P(A)= 0.25 and P(B)=0.18, what is the P(A or B)?

0.25 + 0.18 = 0.43

You flip a coin and toss a 1-6 number cube.

Find P(heads and 4).

1/2 • 1/6 = 1/12

The reception is being catered. The caterers offer 2 appetizers, 2 salads, and 3 main courses for each eighth grade student to choose for dinner. If the caterers would like 36 different combinations of dinners, how many desserts should they offer?

2•2•3•x=36, 12x=36, x=3 desserts

A password consists of 3 letters. The password is case sensitive, which means upper-case and lower-case letters are different

characters. What is the probability of randomly being assigned the password yEs?

1/52•1/52•1/52 = 1/140608

If A and B are independent events such that P(A)= 0.25 and P(B)=0.33, what is the

P(A and B)?

0.25 • 0.33 = 0.0825

A password contains 4 digits. Each digit is a number between 0-9. What is the probability that each digit will be a

2?

1/10•1/10 •1/10 •1/10 = 1/10,000

Cobb County Schools needs 20 representatives for the Board of

Education Committee. Six members will come from the high schools, six will

come from the middle schools, and eight will come from the elementary schools. The superintendent selects one of the members to be a spokesman for the

whole committee. What is the probability that he will choose a middle or high

school representative?

6/20 + 6/20 = 12/20 = 3/5

In the United States, 2/5 of all households own 2 or more televisions, and 1/3 of all

households own at least one dvd player. What is the

probability that a household picked at random will have 2 or more televisions and at least

one dvd player?

2/5 • 1/3 = 2/15

Steve has two bags. Bag 1 contains 3 bandaids, 2 cotton balls, 4

toothpicks, and 2 combs. He also has a second bag containing 2

rubberbands and 1 brush. What is the probability that Steve selects a

bandaid from bag 1 and a rubberband from bag 2?

3/11 • 2/3 = 2/11

There are 52 cards in a deck. What is the

probability of drawing a king or an ace?

4/52 + 4/52 = 8/52 = 2/13

A company has a 5 symbol code. The code consists of two letters and 3 digits

that can be repeated. How many different codes are possible?

26 • 26 • 10 • 10 • 10 = 676,000

Fred rolls 2 number cubes. What is the probability that the two numbers will have a

sum of 8?

5/36

Answers for review packet