An appliance dealer sells three different models of freezers having 13.5, 15.9, and 19.1 cubic feet of

Question:

An appliance sells three different models of freezers having 13.5, 15.9, and 19.1 cubic feet of storage space. Let x = the amount of storage space purchased by the next customer to buy a freezer. Suppose that x has the following probability distribution:

An appliance dealer sells three different models of freezers having

a. Calculate the mean and standard deviation of x.
b. Give an interpretation of the mean and standard deviation of x in the context of observing the outcomes of many purchases.

Dealer
A dealer in the securities market is an individual or firm who stands ready and willing to buy a security for its own account (at its bid price) or sell from its own account (at its ask price). A dealer seeks to profit from the spread between the...