Dawson's Repair Service orders parts from an electronic company who advertises its parts o be no more than 2% defective. What is the probability that Bill Dawson finds 3 or more parts out of a sample of 60 to be defective?
A) 4.85%
B) 0.485%
C) 15.62%
D) Almost 50%
E) 22.96%

Question

Quizplus · Accepted Answer

The probability of a part being defective is 2%, and we are looking for the probability of finding 3 or more defective parts in a sample of 60. This can be modeled using a binomial distribution. The probability of finding exactly 0, 1, or 2 defective parts is calculated and subtracted from 1 to find the probability of 3 or more defective parts. This results in approximately 4.85%.

Dawson's Repair Service Orders Parts from an Electronic Company Who