Let XXX be a discrete variable 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 variance Var(X)Var(X)Var(X)?
2/32/32/3
4/34/34/3
1/31/31/3
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