### Standard deviation of the sample proportion of heads

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##### Reference no: EM131069771

If we toss a fair coin 200 times, the number of heads is a random variable that is binomial. Find the mean and the standard deviation of the sample proportion of heads.

= 0.5 and = 0.5.

= 0.5 and = 0.0354.

= 0.5 and = 200.

= 200 and = 0.5.

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