Blue Chapter 9 Pretest

by Angela Stark

| 9 Questions1

1

POPULATION: The graph shows the population (in millions) of the United States from 1960 to 2010. In what year was the population of the United States about 180 million?

1960

1970

1980

1990

2000

2010

2

1

What was the approximate population of the United States in 1990?

3

1

Describe the trend shown by the data.

Positive linear relationship

Negative linear relationship

Nonlinear Relationship

No Relationship

4

1

WEIGHT: The table shows the weight of a baby over several months. Which scatterplot matches the data

First scatterplot

Second scatterplot

Third scatterplot

5

1

Write an equation of the line of fit. Remember y=mx+b

y=8x+1

y=16x+1.5

y=7x+1.5

y=1.5x+7

6

1

The baby is gaining 1.5 pounds per month and was born with a weight of 7 pounds.

True

False

7

1

READING: You ramdomly survey students at your school about what type of books they like to read. The two-way table shows your results. Find and interpret the marginal frequencies. Select all that are correct.

26 students like nonfiction

48 students like nonfiction

22 students dislike nonfiction

20 students dislike nonfiction

8

1

Choose the best data display for the following situation: Magazine sales grouped by price.

Scatterplot

Two-Way Tables

Histogram

Bar Graph

9

1

Choose the best data display for the following situation: The distance a person hikes each week.

Line graph

Stem-and-Leaf Plot

Scatterplot

Pictograph

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