Question 689191: A student studying for a vocabulary test knows the meanings of 16 words from a list of 24 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A student studying for a vocabulary test knows the meanings of 16 words from a list of 24 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows?
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Binomial Problem with n = 10 ; p(know) = 2/3
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P(8<= x <=16) = 1-P(0<= x <=7) = 1 - binomcdf(16,2/3,7) = 0.9500
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Cheers,
Stan H.
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