- Refer to Exercise 4. Assume that the cost of repairing an assembly whose clearance is too little is $2, and the cost of repairing an assembly whose clearance is too much is $3.
a. Express the total cost of repairs in terms of X and Y.
b. Find the mean of the total cost of repairs.
c. Find the standard deviation of the total cost of repairs.
- Refer to Exercise 9.
a. Find µX+Y
b. . Find σX+Y .
c. Find P(X + Y = 5)
- Refer to Exercise 9.
a. Find the conditional probability mass function pYX (y | 4)
b. Find the conditional probability mass function pYX (x | 3)
c. Find the conditional expectation E(Y | X = 4).
d. Find the conditional expectation E(X | Y = 3).