Posted by **Taymor** on Thursday, April 9, 2009 at 11:41pm.

Involving a true-false test. Assume that 8 questions are answered by guessing.

What is the probability of at least 6 correct answers?

I know this a Burnoulli Trial problem and that N=8 and p=.5 and q=.5

I just don't know where to go from there.

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