In baseball, is there a linear correlation between batting average and home run percentage? Let x represent the batting average of a professional baseball player, and let y represent the player's home run percentage (number of home runs per 100 times at bat). A random sample of n = 7 professional baseball players gave the following information.

x	0.237	0.249	0.286	0.263	0.268	0.339	0.299
y	1.8	3.7	5.5	3.8	3.5	7.3	5.0

A.Use a calculator to verify that x = 1.941, x² = 0.545, y = 30.6, y² = 152.16 and xy = 8.828.

Compute r. (Round your answer to four decimal places.)

Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims.

x37,15,30,72

y40,35,30,26,21

B.Use a calculator to verify that x = 127, x² = 6367, y = 152, y² = 4842, and xy = 3107. Compute r. (Round your answer to four decimal places.)

r=