Question 350137
Hi
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Note: The probability of x successes in n trials is: 
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P = C[10,8]* {{{p^x}}}*{{{q^(n-x)}}} where p and q are the probabilities of success and failure respectively. In this case both p & q are = 1/2 or .5
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C[10,8] = {{{ 10!/(8!(10-8))!= 10!/(8!*2)!=(10*9)/2 =45}}}
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P = {{{45*.5^8*.5^2 = 45*.0039*.25}}} = .0439
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4.39% chance of getting 8 of the true and false questions correct