In a recent production batch of automobiles, 10% are found to have a minor engine defect.A rental car company purchases 20 of these vehicles.What is the probability that exactly 3 of the 20 purchased vehicles are defective?
A) 0.0010
B) 0.1901
C) 0.8670
D) 0.1330

Question

Quizplus · Accepted Answer

This is a binomial distribution problem with n=20, p=0.1, and we're looking for P(X=3). Using the binomial probability formula, we get P(X=3) = (20 choose 3) * 0.1^3 * 0.9^17 ≈ 0.1901. Therefore, the best choice is B.

In a Recent Production Batch of Automobiles, 10% Are Found