Question

Flip a fair coin 9 times. Find the probability of getting the following outcome. (Round your answer to six decimal places.) at least 5 heads

Oct 10, 2011

P(5) = 1/32
P(6) = 1/64
...

P(>=5) = 1/32(1 + 1/2 + 1/4 + 1/8 + 1/16)
= 1/32 * 31/16 = 31/512

Oct 10, 2011

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