In testing a certain kind of missile, target accuracy is measured by the average distance X (from the target) at which the missile explodes. The distance X is measured in miles and the sampling distribution of X is given by: AI X 0 10 50 100 P(X 3 10 15 5 10 Calculate the mean of this sampling distribution. a) 0 36.3 b) O 50.5 c) 54.5 d) 0 52.0 e) O 1316.0