qqp question1: Let x assumes the value 0,1,2 and 3 with respective probabilities 0.51, 0.38, 0.10 and 0.01 the variance of distribution is? question2: Let x assumes the value 0,1,2 and 3 with respective probabilities 0.51, 0.38, 0.10 and 0.01 the mean of distribution is?