If X∼Binomial(n,p)X \sim \text{Binomial}(n, p)X∼Binomial(n,p), what is the skewness of XXX?
1−2pnp(1−p)\frac{1-2p}{\sqrt{np(1-p)}}np(1−p)1−2p
p−qnpq\frac{p-q}{\sqrt{npq}}npqp−q
1−pnp\frac{1-p}{\sqrt{np}}np1−p
np1−p\frac{np}{1-p}1−pnp