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A geologist has collected 25 specimens of basaltic rockand and 16 specimens of granite. The...

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A geologist has collected 25 specimens of basaltic rockand and 16 specimens of granite. The geologist nstructs a laboratory assistant to randomly select 10 ofthe specimens for analysis.(a) What is the probability that at least 3 of the selected specimens are granite?(b) What is the expected number of granite specimens in the sample?(c) If this same process is repeated every day, how many days (on average) will it take before getting a sample consisting entirely of granite?

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