2. The following density function describes the random variable X. 1 2x+1-20 if 0 _=1 < x < 0+₁ 2 2 otherwise 0 f(x) = a. Find the expected value of X, E(X). b. Find the variance of X, V(X) c. If X₁ = 11.3, X₂ = 10.7, X₂ = 10.95, X₁ = 11.1 is a random sample from this distribution 1 2 4 what will be an unbiased estimator for ?

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