What would be the mean and standard deviation for the number of heads in 144 coin flips?
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What would be the mean and standard deviation for the number of heads in 144 coin flips?
Recall that if we flip a coin at least 20 times, the distribution of the number of heads is approximately normal with mean equal to half the number of flips and standard deviation equal to half of the square root of the number of flips.
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