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Random Variablesmedium
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A random variable XXX takes values {0,10}\{0, 10\}{0,10} with P(X=0)=0.9P(X=0)=0.9P(X=0)=0.9 and P(X=10)=0.1P(X=10)=0.1P(X=10)=0.1. What is the variance Var(X)Var(X)Var(X)?