The Lengths of Long Distance Phone Calls Placed on a Cell

Multiple Choice

The lengths of long distance phone calls placed on a cell phone can be described by a Normal model with a mean of 7 minutes and a standard deviation of 2 minutes.If one call is randomly selected from wireless phone company records,what is the probability that it will have lasted more than 11 minutes?

A) 0.0977
B) 0.23
C) 0.977
D) 0.023
E) 0.98