Past experience has shown that 60% of all captains are promoted to major. The 819th Infantry Division has 48 captains who are eligible for promotion. Nine of these captains are West Point graduates. Eight of the nine West Pointers are promoted. Is there any reason to suspect that West Point graduates are given preferential treatment? Why? Show your work.

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Let E be any event then the probability of an event E for the binomial distribution ... View the full answer