Assume that the cost of repairing an assembly whose clearance is too little is $2, and the

Question:

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.