SOLUTION: Flip a fair coin 7 times. Find the probability of getting the following outcome. (Round your answer to three decimal places.) at most 2 heads

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Question 1204063: Flip a fair coin 7 times. Find the probability of getting the following outcome. (Round your answer to three decimal places.)
at most 2 heads
Answer by ikleyn(52754) About Me  (Show Source):
You can put this solution on YOUR website!
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Flip a fair coin 7 times. Find the probability of getting the following outcome.
(Round your answer to three decimal places.)
at most 2 heads
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Typical binomial distribution problem.

    P = %28C%5B7%5D%5E0+%2B+C%5B7%5D%5E1+%2B+C%5B7%5D%5E2%29%2F2%5E7 = %281+%2B+7+%2B+21%29%2F2%5E7 = 0.227  (rounded).   ANSWER

Solved.