# Question: A Calculate the covariance of the set of data 20

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.

**View Solution:**## Answer to relevant Questions

A formula that is sometimes given for computing the correlation coefficient is Does a country’s gross domestic product (GDP) indicate its level of technology? The CIA World Factbook [https://www.cia.gov/] provides statistics on all world countries. The following 2008 information was obtained for a ...Place bounds on the p-value resulting from a sample With n = 18 and r = 0.444 in the following circumstances: a. Ha is two-tailed. b. Ha is one-tailed. If a sample of size 18 has a linear correlation coefficient of _0.50 is there significant reason to conclude that the linear correlation coefficient of the population is negative? Use a = 0.01 The National Basketball Association calculates many statistics, just like any other professional sport. Average points per game, average rebounds per game, number of years played, number of titles, number of All-Star ...Post your question