Question: 17. Let A denote the event that the next request for assistance from a statistical software consultant relates to the SPSS package, and let B

17. Let A denote the event that the next request for assistance from a statistical software consultant relates to the SPSS package, and let B be the event that the next request is for help with SAS. Suppose that and .

a. Why is it not the case that ?

b. Calculate .

c. Calculate .

d. Calculate .

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