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Distributionshard
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Let X∼Binomial(n,p)X \sim \text{Binomial}(n, p)X∼Binomial(n,p) and define Z=X−npnp(1−p)Z = \frac{X - np}{\sqrt{np(1-p)}}Z=np(1−p)​X−np​. What is the skewness of the standardized random variable ZZZ?