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kondor19780726 [428]
3 years ago
5

An instructor gives her class a set of 10 problems with the information that the final exam will consist of a random selection o

f 5 of them. If a student has figured out how to do 7 of the problems, what is the probability that he or she will answer correctly (a) all 5 problems? (b) at least 4 of the problems?
Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0

Answer:

P

Step-by-step explanation:

(all 5 correctly) = (5 chosen among 7) / (5 chosen among 10)

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