If SD of a Poisson distribution is 2, then what is its mean?

Find the standard deviation (SD) of Poisson distribution if its mean is 9.

Answer the following: Is it possible that mean of a binomial distribution is 2 and variance is 4?

If the mean of the following distribution is 4.876,what is the value of x?

The median and mode of a frequency distribution are 26 and 29 then its mean is

Answer the following questions The median and mode of a distribution are 21.2 and 21.4. Find its mean.

The mean of a binomial distribution is 4 and its standard deviation is sqrt3 . Obtain the values of 'n', 'p' and 'q'.

For Poisson distribution, mean and standard deviation are equal. (Write True or False).

For a bonimal distribution mean is ---- than varibance.

Find the mean of the following distribution by the method of step deviation:

what is poisson's ratio ?