<PRE><B>Question 287950</B>
A student is taking a true/false exam with 16 questions. If he guesses on each question, what is the probability he will get at least 14 questions correct?
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P(14&lt;= x &lt;=16) 
= 1 - 16C14(1/2)^14*(1/2)^2 
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= 1 -  120(1/2)^16
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= 1 - 0.001831
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= 0.9982
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Cheers,
Stan H.</PRE>