Automobile alternators contains four defectives
A batch of 20 employed automobile alternators contains four defectives. If three alternators are sampled at random, find out the probability of the event.
(a) A = [none of the defective appear]
(b) B = [exactly two defectives appear]
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How much grazing area does Bessy posses? Barn is in shape of the P the top is 30ft, right side is 40ft in total, and is missing a 20 by 20 square at bottom right. Point A is in middle of 20ft side the furthest right.
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