# Calculating a Correlation

7

For the following data (a) display the data in a scatter plot, (b) calculate the correlation r, and (c) make a conclusion about the data type of correlation.

The number of hours 6 students watched television during the weekend and the scores of each student who took a test the following Monday.

Hours spent watching TV, x 0 1 2 3 3 5

Test score, y 96 89 83 72 90 67

(a) Choose the correct scatter plot below:

(b) The correlation coefficient r is _______. (round to three decimal places as needed)

(c) Which of the following best describes the type of correlation that exists between number of hours spent watching television and test scores.

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#### Solution Preview

7

For the following data (a) display the data in a scatter plot, (b) calculate the correlation r, and (c) make a conclusion about the data type of correlation.

The number of hours 6 students ...

#### Solution Summary

The expert examines the correlations in data.