21 Each Of 20 Balls Is Tossed Independently And At Random Into One Of 5 Bins Let P Be The Probability That Some Bin En 1 (138.93 KiB) Viewed 90 times
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21. Each of 20 balls is tossed independently and at random into one of 5 bins. Let p be the probability that some bin ends up with 3 balls, another with 5 balls, and the other three with 4 balls each. Let q be the probability that a every bin ends up with 4 balls. What is ? (A)T (B) 4 (C8 (D) 12 (E) 16
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