Solution-A batch of 20 used automobile alternators contains

A batch of 20 used automobile alternators contains 4 defectives. If 3 alternators are sampled at random, find the probability of the event.

(a) A = [none of the defective appear]
(b) B = [exactly two defectives appear]

Assume that a set of test scores is normally distributed : assume that a set of test scores is normally distributed with a mean of 78 and a standard diviation of 10. what

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A batch of 20 used automobile alternators contains 4 : a batch of 20 used automobile alternators contains 4 defectives. if 3 alternators are sampled at random find the

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