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Chapter 12: Q. 70 (page 724)

Table 12.22 gives the gold medal times for every other Summer Olympics for the women鈥檚 \(100-\)meter freestyle (swimming).

a. Decide which variable should be the independent variable and which should be the dependent variable.

b. Draw a scatter plot of the data.

c. Does it appear from inspection that there is a relationship between the variables? Why or why not?

Short Answer

Expert verified

Part a. Independent variable 鈥� Year

Dependent variable 鈥� Time

Part b.

Part c. It appears to be a relationship between time and year.

Step by step solution

01

Part a. Step 1. Given information

Given,

02

Part a. Step 2. Explanation

Year will be the independent variable and time will be the dependent variable.

03

Part b. Step 1. Explanation

Graph,

04

Part c. Step 1. Explanation

It appears to be a relationship between time and year, because it seems gold medal times decreases gradually with years.

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