Question
For a Binomial distribution, mean is $2$ and standard deviation Is $\sqrt{1.6}$ Find its parameters and state its probability function.

Answer

$N =10, p =\frac{1}{5}, p(x)={ }^{1} 0 c_{x}\left(\frac{1}{5}\right)^{x}\left(\frac{1}{5}\right)^{10-x}$

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