Mathematics, 16.03.2020 17:42 crawfordricky84

Twelve doctors work in a clinic, of which 3 were trained at Harvard Medical School. Four doctors are randomly selected from the 12 clinic doctors to attend a special conference. Find the expected number of doctors out of the 4 that were trained at Harvard Medical School.

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Twelve doctors work in a clinic, of which 3 were trained at Harvard Medical School. Four doctors are...