SfX 315 925 535 45225175 445. Where xi i th variable. The formula is given by.
In a discrete probability distribution of a random variable X the mean is equal to the sum over every possible value weighted by the probability of that value.
In a discrete probability distribution of a random variable X the mean is equal to the sum over every possible value weighted by the probability of that value. Where x 1 x 2 x 3 x n are the observations. For calculating the mean of group data we calculate the class marks. U i x i ah.
