In a certain college, 20% of the physics majors belong to ethnic minorities. a) If 10 students are s
Question: In a certain college, 20% of the physics majors belong to ethnic minorities.
a) If 10 students are selected at random from the physics majors, what is the probability that exactly 6 belong to an ethnic minority?
b) If the school has 50 physics majors this year, how many would you expect to belong to an ethnic minority?
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