In a binominal distribution mean is 6 and standard deviation is `sqrt2`.What is the number of trials.

Find the bionomial distribution whose mean is 10 and standard deviation 2sqrt2

Find the mean and standard deviation using short-cut method

Consider the following distribution: Find the standard deviation

Find the mean, variance and standard deviation using short cut method.

Standard deviation of first n odd natural numbers is

Consider the following distribution, Find the standard deviation of the distribution.

If the variance of a certain distribution is 8, write its standard deviation.

Coefficient of variation of two distributions are 60 and 70 and their standard deviations are 21 and 16 respectively.What are their arithmetic means?

Calculate mean , variance and standard deviation for the following distribution.

Consider the following distribution: Calculate the standard deviation of the distribution.