MODULE 10: INTERPRETING CATEGORICAL AND QUANTITATIVE DATA

Linear relationship and the correlation coefficient

Answer the questions that follow. The same response may be the correct answer for more than one question.

y1234567891011x12345678910110

Figure1

y1234567891011x12345678910110

Figure2

y1234567891011x12345678910110

Figure3

y1234567891011x12345678910110

Figure4

1. For which data set does the correlation coefficientrappear to be equal to1

?Choose one

The data set in Figure 1

The data set in Figure 2

The data set in Figure 3

The data set in Figure 4

2. Which data set has an apparent positive, but not perfect, linear relationship between its two variables?Choose one

The data set in Figure 1

The data set in Figure 2

The data set in Figure 3

The data set in Figure 4

3. Which data set indicates the strongest linear relationship between its two variables?Choose one

The data set in Figure 1

The data set in Figure 2

The data set in Figure 3

The data set in Figure 4