QUIZ Find the mean, variance, and the standard deviation of the following probability distribution X P(X) X - P(X) X2 X2 - P(X) 2. X P(X) X - P(X) X2 X2 - P(X) 1 0.238 2 0.3 2 0.290 3 0.4 3 0.177 4 0.2 4 0.158 5 0.1 5 0.137 H = ? H = ? 02 = ? 02 = ? o= ? o=