Refer to Exercise a. Find .b. Find .c. Find the conditional probability density function d. Find the conditional expectation .

Answer :

Step 1 of 5 :

Given, A production facility contains two machines that are used to rework items that are initially defective.

Let, X = number of hours that the first machine is in use and

Y = number of hours the second machine is in use

Let X and Y have the joint probability density function