Question

One professor grades homework by randomly choosing 5 out of 14 homework problems to grade.
(a) How many different groups of 5 problems can be chosen from the 14 problems?


groups

(b) Probability extension: Jerry did only 5 problems of one assignment. What is the probability that the problems he did comprised the group that was selected to be graded? (Round your answer to four decimal places.)

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Basic Probability

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