Question 816307: A true-false quiz has sixteen questions. A student guesses all the answers. (Round your answers to four decimal places.)
(a) Find the probability of getting eleven correct.
(b) Find the probability of getting at least eleven correct.
(c) Find the probability of getting no more than two correct.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A true-false quiz has sixteen questions. A student guesses all the answers. (Round your answers to four decimal places.)
(a) Find the probability of getting eleven correct.
Ans: P(x = 11) = 16C11(1/2)^16 = 0.0667
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(b) Find the probability of getting at least eleven correct.
P(11<= x <=16) = 1-binomcdf(16,1/2,10) = 0.1051
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(c) Find the probability of getting no more than two correct.
P(0<= x <=2) = binomcdf(16,1/2,2) = 0.0021
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Cheers,
Stan H.
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