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What is the probability of getting at least one tail if a fair coin is flipped three times?

1 Answer

Nov 1, 2015

#7/8#

Explanation:

Probability of NOT getting a tail in 3 coin toss is #(frac{1}{2})^3=1/8#.

Probability of getting at least 1 tail in 3 coin toss is #1-1/8=7/8#.

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