The standard deviation of a binomial random variable X is given by the formula s ² = np (1 - p ), where n is the number of trials, and p is the probability of success.

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The standard deviation of a binomial random variable $X$ is given by the formula $\sigma = \sqrt{np(1-p)}$, where $n$ is the number of trials, and $p$ is the probability of success.

The Standard Deviation of a Binomial Random Variable X Is