If the standerd deviation of a Poisson distribution is 2, then the parameter is

The standard deviation of a poisson distribution is 4 then its mean is

The standard deviation of a poisson distribution is 4 then its mean is

For the Poisson distribution

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

If the standerd deviation of the binomial distribution (q+p)^(16) is 2, then mean is

If the standerd deviation of the binomial distribution (q+p)^(16) is 2, then mean is

If X is a Poisson distribution such that P(X=1)=P(X=2) then the parameter is

Show that the standard deviation of a binomial distribution (with parameters n and p) cannot exceed sqrt(n)//2 .