Statistics, Data Science, Machine Learning.
E(X1) + E(X2) + E(X3) +………….+ E(Xn) Since the trails are independent, E(X1)=E(X2) = E(X3)=…….=E(Xn) Hence, E(X) = np Similarly, Var(X) = np(1-p) For the above example, E(X) = 10 x 0.25 = 2.5 and Var(X) = 10 x 0.25 x 0.75 = 1.875 3. Geometric Distribution : The Geometric distribution is like