Suppose that X_1,…,X_n~P(/lambda), the Poisson distribution
with mean /lambda. Since /lambda is both the mean and variance of
the Poisson distribution, there are two natural MMEs for /lambda,
/lambda/hat = m_1 from the first moment equation and /lambda/hat_2
= (-1 + (sqrt(1+4m_2)/2)) from the second moment equation (since
we





