MathProbability
posted by C.J on .
This is another one I need help with.
On a TV game show, the contestant is asked to select a door an then is rewarded with the prize behind the door selected. If the doors can be selected with equal probability, what is the expected value of the selection if the doors have behind them a $40,000 foreign car, a 3$ silly straw, and a $50 math textbook?

40000 + 3 + 50 = 13,351
$13,351