Question

Consider a Poisson distribution for the tossing of a biased coin. The mean for this distribution is $\mu .$ The standard deviation for this distribution is given by

• A. $\sqrt{\mu }$
• B. ${\mu }^2$
• C. $\mu$
• D. $1/\mu$

Answer 1

The correct option is A $\sqrt{\mu }$

For poisson distribution,
Mean = Variance = $\mu$ (given)

So standard deviation is $\left(\sigma \right)=\sqrt{\mu }$