Question: For the Transaction Processing Performance Council's benchmark in Exercise 5-10, let X, Y, and Zdenote the average number of selects, updates, and inserts operations required

For the Transaction Processing Performance Council's benchmark in Exercise 5-10, let X, Y, and Zdenote the average number of selects, updates, and inserts operations required for each type transaction, respectively. Calculate the following:

(a) Covariance between X and Y

(b) Correlation between X and Y

(c) Covariance between X and Z

(d) Correlation between X and Z

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