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A School Bookstore Sold 10 New Books and 14 Used

Question 49

Essay

A school bookstore sold 10 new books and 14 used books one they; one customer bought five books that day. Find the probability that:
A) Exactly three of the books bought by this customer are used.
B) At least three of the books bought by this customer are used.
C) All five of the books bought by this customer are of the same type.

Correct Answer:

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