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4 votes
Assume that the box contains 2 defective widgets and18 acceptable widgets. There are 5 inspectors, each of whom selects a widget from the box at random, inspects it, and then replaces it in the box. Each inspector makes his or her inspection at a different time.

What is the probability that at least one inspector will find a defective
widget?

User Sagi Mymon
by
8.3k points

1 Answer

1 vote

Probability that any one inspector finds a defective one is

1/9 and doesn't find one is 8/9 so it should be 1−(8/9)^5
User Mahmoud Sabri
by
8.1k points
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