Question 296701
A test consists of 10 true and false questions. To pass the test a student must answer at least eight questions correctly. If the student guesses on each questions what is the probability that the student will pass the test?
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Binomial Problem with n = 10 and p = 1/2
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P(8<= x <= 10) = 1 - P(0<= x <=7) = 1 - binomcdf(10,0.5,7) 
= 0.0547..
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Cheers,
Stan H.