A very large shipment of parts contains 7 percent defectives. Two parts are chosen at random from the shipment and checked. Let the random variable X denote the number of defectives found. Find the probability function of X. Answer the following, rounding your answers to four decimal places where appropriate. (a) Find P(X = 0) (b) Find P(X = 1) (c) Find P(X = 2) (d) Find the mean of X (e) Find the variance of X
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07 (probability of defectives), and k = 0, 1, 2. Show more…
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