Consider a discrete random variable XXX with P(X=k)=1/3P(X=k) = 1/3P(X=k)=1/3 for k∈{1,2,3}k \in \{1, 2, 3\}k∈{1,2,3}. What is the skewness?
111
000
−1-1−1
0.50.50.5