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

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

(a) f(x,y)

(b) Conditional probability mass function for X and Y given Z=0

(c) P{X <6, <6\Z = 0)

(d) E(XY 0,Z= 0)

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