# Question

a. Calculate the covariance of the set of data (20, 10), (30, 50), (60, 30), (80, 20), (110, 60), and (120, 10).

b. Calculate the standard deviation of the six x values and the standard deviation of the six y values.

c. Calculate r, the coefficient of linear correlation, for the data in part a.

d. Compare these results to those found in the text for Example 13.

b. Calculate the standard deviation of the six x values and the standard deviation of the six y values.

c. Calculate r, the coefficient of linear correlation, for the data in part a.

d. Compare these results to those found in the text for Example 13.

## Answer to relevant Questions

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