Planner* I can identify bias data

* I can follow order of operations

Computer notes quiz tomorrow. Make sure you are saving to your “h-

drive”!

Day 1231.)Solve mentally: 4x – 2= 18a.) x = 16 b.) x = 20 c.) x = 5

2.) Casey’s I-Pod has all kinds of music. If 60 or 20% of his songs are Country, how many songs are on his I-Pod?a.) 12 b.) 120 c.) 300 d.) 240

3.) 7.12 x 10-5

4.) 4-1

Sports Science

• http://espn.go.com/espn/sportscience/index

Grade Sheet

Stapled to the back of your green sheet

• Race Track• Textbook Scavenger hunt• 2, I have, who has games.

• Today take out a sheet and write, Math-O (or if you have room on the back of another paper already stapled to the back of your green sheet).

In order to make sure data is accurate people taking a survey need to gather information using…

_______________ sampling

If you wanted to know how Meredith Middle School students feel about school uniforms, how could you randomly choose people to interview?

Sampling Method

How Members are Chosen

Random

Systematic

Stratified

Convenience

Voluntary-response

1.) You are writing an article about what students do after school. You decide to interview student whose

last name begins with an A.

Type of Sampling:

Why:

2.) Runner’s World magazine wants to know how many miles the average American runs per week. They ask their readers to fill out a survey and send it in.

Type of Sampling:

Why:

3.) Mrs. Flesch wants to know what students plan to do after high school. One class of 7th graders is in the computer lab by her office so she interviews those students.

Type of Sampling:

Why:

4.) The mayor of Des Moines wants to know if residents want to use tax dollars to create new parks. The mayor randomly picks 5 Des Moines neighborhoods and then randomly picks 20 houses in each of the 5 neighborhoods to interview.

Type of Sampling:

Why:

5.) Mr. Wheeler, wants to know what students think about the lunches at Hoover. He randomly chooses three classes from each grade and then draws three random names from each class to poll about lunch menus.

Type of Sampling:

Why:

6.) The Governor of Iowa wants know if Iowa families are happy with their child’s school. The Governor interviews families with 3 or more children.

Type of Sampling:

Why:

7.) The Hoover cheerleaders want to know what cheers the crowd likes best. At a basketball game 5 sections are chosen at random and 10 people from each section are randomly polled.

Type of Sampling:

Why:

8.) A music store manager wants to know where most teenagers get their music. She asks customers in her store to take a quick survey.

Type of Sampling:

Why:

9.) You work for the Des Moines Register and your assignment is to write an article on the Twilight movies. You go to opening night of Breaking Dawn and poll every 10th person in line.

Type of Sampling:

Why:

10.) You are writing an article for the Meredith news letter about school uniforms. You want to get the opinion of Meredith students. You ask you friends if they would like to wear uniforms to school.

Type of Sampling:

Why:

11.) Bike World wants to know about peoples biking habits in Des Moines. The owner sends out a postcard asking people to fill out a survey and return it in the mail.

Type of Sampling:

Why:

12.) The city of Des Moines wants to build a new aquatic center. The city wants resident input. They poll every 200th name in the phone book.

Type of Sampling:

Why: