Exhibit 5-18

Multiple Choice

Exhibit 5-18.There are currently 18 pit bulls at the pound.Of the 18 pit bulls,four have attacked another dog in the last year.Joe,a member of the staff,randomly selects six of the pit bulls for his group. Refer to Exhibit 5-18.What is the probability that at least one of the pit bulls in Joe's group attacked another dog last year?

A) 0.1618
B) 0.4314
C) 0.5686
D) 0.8382