Suppose that the probabilities that Amy drives $12,000,15,000,$ and $18,000$ miles per year are $0\mathrm{.}5,0\mathrm{.}4,$ and $0\mathrm{.}1,$ respectively. What option should Amy choose using the expected value approach?

EV$($Dealer A$)=$$ EV$($Dealer B$)=$$ EV$($Dealer C$)=$$ The best decision is $---$Select$---$ Dealer A Dealer B Dealer C Dealer A or B Dealer A or C Dealer B or C $.$

$($e$)$

Develop a risk profile for the decision selected in part $($d$).$ What is the most likely cost, and what is its probability?

Based on the risk profile, the most likely cost is $ at a probability of $.$

$($f$)$

Suppose that after further consideration Amy concludes that the probabilities that she will drive $12,000,15,000,$ and $18,000$ miles per year are $0\mathrm{.}3,0\mathrm{.}4,$ and $0\mathrm{.}3,$ respectively. What decision should Amy make using the expected value approach?

EV$($Dealer A$)=$$ EV$($Dealer B$)=$$ EV$($Dealer C$)=$$ The best decision is $---$Select$---$ Dealer A Dealer B Dealer C Dealer A or B Dealer A or C Dealer B or C $.$