# Lesson 2

Statistical Questions

### Problem 1

Sixth-grade students were asked, “What grade are you in?” Explain why this is *not* a statistical question.

### Solution

For access, consult one of our IM Certified Partners.

### Problem 2

Lin and her friends went out for ice cream after school. The following questions came up during their trip. Select **all** the questions that are statistical questions.

How far are we from the ice cream shop?

What is the most popular ice cream flavor this week?

What does a group of 4 people typically spend on ice cream at this shop?

Do kids usually prefer to get a cup or a cone?

How many toppings are there to choose from?

### Solution

For access, consult one of our IM Certified Partners.

### Problem 3

Here is a list of questions about the students and teachers at a school. Select **all** the questions that are statistical questions.

What is the most popular lunch choice?

What school do these students attend?

How many math teachers are in the school?

What is a common age for the teachers at the school?

About how many hours of sleep do students generally get on a school night?

How do students usually travel from home to school?

### Solution

For access, consult one of our IM Certified Partners.

### Problem 4

Here is a list of statistical questions. What data would you collect and analyze to answer each question? For numerical data, include the unit of measurement that you would use.

- What is a typical height of female athletes on a team in the most recent international sporting event?
- Are most adults in the school football fans?
- How long do drivers generally need to wait at a red light in Washington, DC?

### Solution

For access, consult one of our IM Certified Partners.

### Problem 5

Describe the scale you would use on the coordinate plane to plot each set of points. What value would you assign to each unit of the grid?

- \((1, \text-6)\), \((\text-7, \text-8)\), \((\text-3, 7)\), \((0, 9)\)
- \((\text-20, \text-30)\), \((\text-40, 10)\), \((20, \text-10)\), \((5, \text-20)\)
- \((\frac {\text{-}1}{3},\text-1), (\frac{2}{3}, \text-1 \frac13), (\frac {\text{-}4}{3},\frac23), (\frac16, 0)\)

### Solution

For access, consult one of our IM Certified Partners.

(From Unit 7, Lesson 13.)### Problem 6

Noah’s water bottle contains more than 1 quart of water but less than \(1 \frac{1}{2}\) quarts. Let \(w\) be the amount of water in Noah’s bottle, in quarts. Select** all** the true statements.

\(w\) could be \(\frac{3}{4}\).

\(w\) could be 1.

\(w > 1\)

\(w\) could be \(\frac 4 3\).

\(w\) could be \(\frac 5 4\).

\(w\) could be \(\frac 5 3\).

\(w > 1.5\)

### Solution

For access, consult one of our IM Certified Partners.

(From Unit 7, Lesson 9.)### Problem 7

Order these numbers from least to greatest:

\(|\text-17|\)

\(|\text-18|\)

-18

\(|19|\)

20

### Solution

For access, consult one of our IM Certified Partners.

(From Unit 7, Lesson 7.)