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

Question

Quizplus · Accepted Answer

The probability that at least one pit bull attacked another dog is 1 minus the probability that none of them did. Calculate the probability that none of the selected pit bulls attacked another dog and subtract from 1.