# Lesson 2

Statistical Questions

Let's look more closely at data and the questions they can help to answer.

### Problem 1

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

### 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.

A:

How far are we from the ice cream shop?

B:

What is the most popular ice cream flavor this week?

C:

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

D:

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

E:

How many toppings are there to choose from?

### Problem 3

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

A:

What is the most popular lunch choice?

B:

What school do these students attend?

C:

How many math teachers are in the school?

D:

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

E:

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

F:

How do students usually travel from home to school?

### 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.

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

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

A:

$$w$$ could be $$\frac{3}{4}$$.

B:

$$w$$ could be 1.

C:

$$w > 1$$

D:

$$w$$ could be $$\frac 4 3$$.

E:

$$w$$ could be $$\frac 5 4$$.

F:

$$w$$ could be $$\frac 5 3$$.

G:

$$w > 1.5$$

(From Unit 7, Lesson 9.)

### Problem 7

Order these numbers from least to greatest:

$$|\text-17|$$

$$|\text-18|$$

-18

$$|19|$$

20

(From Unit 7, Lesson 7.)