A hot spring resort arrange 5 sessions of hot spring experience tour every day. In each session, there could be a maximu

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answerhappygod
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A hot spring resort arrange 5 sessions of hot spring experience tour every day. In each session, there could be a maximu

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A hot spring resort arrange 5 sessions of hot spring experience
tour every day. In each session, there could be a maximum of 15
visitors. Each visitor can visit different hot springs in this
tour. Suppose the following table represents the probability
distribution function of the number of hot springs (X) a visitor
visits in a tour.
(f) For many sessions, each with 15 visitors, find the
expectation and standard deviation of the number of visitors visit
at least 2 hot springs.
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