1) Sea X una variable aleatoria discreta y f su funcin de distribucin de probabilidad: f(x)=252x+1,x =0,1,2,3,4 a) Calcule la media de X b) Sea G(X)=2X+1. Calcule la media de G(X) c) Calcule la varianza de XLet X be a discrete random variable and f its probability distribution function: f(x)= 25 x=0, Calculate the mean of Xb ) Let G(X)=2X+1. Calculate the mean of G(X)c) Calculate the variance of X.