Find the Expected Value

Multiple Choice

Find the expected value.
-Experience shows that a ski lodge will be full (199 guests) if there is a heavy snow fall in December, while only partially full (57 guests) with a light snow fall. What is the expected number of guests if
The probability for a heavy snow fall is .40? Assume that heavy snowfall and light snowfall are the
Only two possibilities.

A) 119.4
B) 142.2
C) 79.6
D) 113.8