Question: The data are from a sample of n = 11 items: X 7 5 8 3 6 10 12 4 9 15 18 Y 21

The data are from a sample of n = 11 items:

X 7 5 8 3 6 10 12 4 9 15 18 Y 21 15 24 9 18 30 36 12 27 45 54

a. Calculate the covariance.

b. Calculate the coefficient of correlation.

c. How strong is the relationship between X and Y? Explain.

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