Question

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 0.255 0.249 0.286 0.263 0.268 0.339 0.299

y 1.0 3.5 5.5 3.8 3.5 7.3 5.0

(b) Use a calculator to verify that Σx = 1.959, Σx² = 0.554, Σy = 29.6, Σy² = 148.48 and Σxy = 8.607.

compute R (round to 3 decimal places)

Answer 1

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