A computer store compiled data about the accessories that 50

A computer store compiled data about the accessories that 500 purchasers of new tablets bought at the same time they bought the tablet. Here are the results: 411 bought cases 82 bought an extended warranty 100 bought a dock 57 bought both a dock and a warranty 65 both a case and a warranty 77 bought a case and a dock 48 bought all three accessories 58 bought none of the accessories A. What is the probability that a randomly selected customer bought exactly 1 of the accessories?

Solution

The probability that a customer bought exactly 1 of the accessories is:

1-P(Customer bought none of the accessories)

=1-58/500

=0.884