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A distributor of computer software wants to obtain some customer feedback concerning its newest package. Three thousand customers have purchased the package. Assume that 600 of these customers are dissatisfied with the product. Twenty customers are randomly sampled and questioned about the package. Let X denote the number of dissatisfied customers sampled.

(a) Find the density for X.

(b) Find E[X] and Var X.

(d) Use the binomial tables to approximate P [X < 3].="">

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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