Suppose we flip a coin 120 times. What are the mean and standard deviation of the corresponding
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Suppose we flip a coin 120 times. What are the mean and standard deviation of the corresponding distribution of heads?
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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