SOLUTION: A student studying for a vocabulary test knows the meanings of 10 words from a list of 22 words. If the test contains 10 words from the study list, what is the probability that at
Algebra.Com
Question 713241: A student studying for a vocabulary test knows the meanings of 10 words from a list of 22 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? (Round your answer to three decimal places.)
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 10 words from a list of 22 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? (Round your answer to three decimal places.)
-----
Binomial Problem with n = 10 ; p(knows) = 10/22 = 5/11
-----
P(8<= x <=10) = 1 - P(0<= x <=7) = 1 - binomcdf(10,5/11,7) = 0.0293
=============================================
Cheers,
Stan H.
==================
RELATED QUESTIONS
#41 A student studying for a vocabulary test knows the meanings of 10 words from a list... (answered by ikleyn)
A student studying for a vocabulary test knows the meanings of 14 words from a list of 22 (answered by stanbon)
A student studying for a vocabulary test knows the meanings of 16 words from a list of 22 (answered by ikleyn)
A student studying for a vocabulary test knows the meanings of 14 words from a list of 20 (answered by edjones)
A student studying for a vocabulary test knows the meanings of 16 words from a list of 24 (answered by stanbon)
A student studying for a vocabulary test knows the meanings of 12 words from a list of 26 (answered by ewatrrr)
A student studying for a vocabulary test knows the meanings of 14 words from a list of 20 (answered by edjones)
A student studying for a vocabulary test knows the meanings of 16 words from a list of 20 (answered by ikleyn)
Can someone show me how to do these, please?
A student studying for a vocabulary test... (answered by ewatrrr)