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4. (10 pts) A particular type of tennis racket. comes in a midsize version and an oversize version. Sixty percent of all customers at a

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4. (10 pts) A particular type of tennis racket. comes in a midsize version and an oversize version. Sixty percent of all customers at a certain store want. the oversize version. Ten customers are randomly selected. Let X denote the number of customers who want. the midsize version. 1. Among ten randomly selected customers who want this type of racket, What is the proba- bility that exactly 2 want the midsize version? 2. Find the mean value E (X )

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