From the tables below, calculate the mean and the variance.

From the table below, find the mean value and the variance.

From the tables below, find the mean and the variance. Values: 1 3 5 …….(2n-1) Frequency: 1 1 1…….. 1

From the following tables calculate the mean, mean deviation from the mean and variance.

Four cards are drawn successively with replacement from a well shuffled pack of 52 cards. Find the probability distribution of the number of aces. Calculate the mean and variance of the number of aces.