Question 812842
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Hi,
12 true-false questions.
Note: The probability of x successes in n trials is: 
P = nCx* {{{p^x*q^(n-x)}}} where p and q are the probabilities of success and failure respectively. 
In this case p & q are = 1/2 or .5
nCx = {{{n!/(x!(n-x)!)}}}
P(8 false answers) = 12!/8!4! (.5)^8(.5)^4 = 495(.5)^8(.5)^4 = .1208