easy stats problem please help

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easy stats problem please help
Message posted by Micah (via 63.255.50.243) on March 4, 2002 at 12:30 AM (ET)

A student prepares for an exam by studying a list of ten problems. She can solve six of them. For the exam, the instructor selects five questions at random from the list of ten. What is the probability that all the students can solve five problems on the exam?

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Re: easy stats problem please help
Message posted by Phil (via 66.32.157.108) on March 4, 2002 at 3:17 AM (ET)

The probability of this student getting all five correct is found using the hypergeometric probability distribution with N=10, n=5, etc. (you can go from there).

The probability of ALL students being able to solve all five problems depends on how many there are and how many each of them could solve from the list of 10. You didn't provide that information

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