[Solution] Find E(X) , Var(X) , σ (X) if a random variable X is given by its density function f(x) , such that f(x)=0 , if x≤
Question: Find \[E(X)\] , \[Var(X)\] , \[\sigma (X)\] if a random variable \[X\] is given by its density
function \(f(x)\) , such that
\[f(x)=0\], if \(x\le 0\)
\[f(x)=3{{x}^{2}}\], if 0 \(0 \le x\le 1\)
\[f(x)=0\], if \(x > 1\)
Deliverable: Word Document 
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[See Steps] Let X be given by its distribution function F(x),
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[Steps Shown] A random variable X is distributed normally with E(X)=7
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