The probability that a visitor to an animal shelter will adopt a dog is 0.20.Out of nine visits,what is the probability that at least one dog will be adopted?
A)0.8658
B)0.3020
C)0.5639
D)0.1342

Question

Quizplus · Accepted Answer

The probability of at least one dog being adopted is 1 minus the probability of no dogs being adopted. The probability of not adopting a dog in one visit is 0.80. For nine visits, it's 0.80^9. Subtract this from 1 to get the probability of at least one adoption: 1 - 0.80^9 = 0.8658.

The Probability That a Visitor to an Animal Shelter Will