# Let X denote the number of Canon SLR cameras sold during a particular week by a certain store. The pmf of X is Sixty percent of all customers who purchase these cameras also buy an extended warranty. Let Y denote the number of purchasers during this week who buy an extended warranty. a. What is P(X = 4, Y =

Let X denote the number of Canon SLR cameras sold during a particular week by a certain store. The pmf of X is Sixty percent of all customers who purchase these cameras also buy an extended warranty. Let Y denote the number of purchasers during this week who buy an extended warranty.

a. What is P(X = 4, Y = 2)?

b. Calculate P(X = Y).

c. Determine the joint pmf of X and Y and then the marginal pmf of Y.

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**Related Book For**

## Probability And Statistics For Engineering And The Sciences

9th Edition

Authors: Jay L. Devore

ISBN: 9781305251809