Let XXX be a Bernoulli random variable with P(X=1)=pP(X=1) = pP(X=1)=p. What is the skewness of XXX?
1−2pp(1−p)\frac{1-2p}{\sqrt{p(1-p)}}p(1−p)1−2p
ppp
1−p1-p1−p
p1−p\frac{p}{1-p}1−pp