Question

Suppose a company fleet of 20 cars contains 7 cars that do not meet government exhaust emissions standards and are therefore releasing excessive pollution. Moreover, suppose that a traffic policeman randomly inspects 5 cars, what is the probability of no more than 2 polluting cars being selected? (Assuming a hyper geometric distribution).

Answer 1

I would say the probability of 2 cars is unsulable.
8x2-30.5+7 gives you the probability
hopes this helps