Question: You are given these data: a. Plot the six points on graph paper. b. Calculate the sample coefficient of correlation r and interpret. c. By

You are given these data:

a. Plot the six points on graph paper.
b. Calculate the sample coefficient of correlation r and interpret.
c. By what percentage was the sum of squares of deviations reduced by using the least squares predictor Å· = a + bx rather than as a predictor of y?

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