NAME DATE PERIOD Lesson 1 Skills Practice

NAME _____________________________________________ DATE __________________ PERIOD _________

Lesson 1 Skills Practice

Scatter Plots

Explain whether the scatter plot of the data for each of the following shows a positive, negative, or no association. Interpret the scatter plot.

Water Draining from Bathtub (gallons)

1.

y

20

15

10

5

x 0 2 4 6 8 10 12 14 16 18

Time (Minutes)

2.

y

9

8

7

Books Read

6

5

4

3

2

1 x

0 123456789

Shoe Size

3.

y

40

Test Score

30

20

10

x

0

1234

TV Time (hours per night)

4.

y

45

40

Total Points Scored

35

30

25

20

15

10

5 x

0 123456789

Games Played

Copyright ? The McGraw-Hill Companies, Inc. Permission is granted to reproduce for classroom use.

5. E-MAIL Construct a scatter plot of the number of E-mails Vincent received over the past six days. Interpret the scatter plot.

Day 1 2 3 4 5 6 E-mails 16 21 3 11 19 5

130

Course 3 ? Chapter 9 Scatter Plots and Data Analysis

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