The number of accidents per week at a busy intersection was recorded for a year. There were 11 weeks with no accidents, 26 weeks with one accident, 13 weeks with two accidents, and 2 weeks with three accidents. A week is to be selected at random and the number of accidents noted. Let X be the outcome. Then, X is a random variable taking on the values 0, 1, 2, and 3.

(a) Write out a probability table for X.

(b) Compute E(X ).

(c) Interpret E(X ).