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(9) Of those mountain climbers who attempt Mt. McKinley, only 65% reach the summit. In a random sample of 11 mountain climbers who attempt to
(9) Of those mountain climbers who attempt Mt. McKinley, only 65% reach the summit. In a random sample of 11 mountain climbers who attempt to climb Mt. McKinley, what is the probability of each of the following? [Show your work] [10 points]
(a) All 11 reach the summit.
(b) No more than 3 reach the summit.
(c) Exactly 9, 10, or 11 reach the summit.
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