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(6 pts) Using methods of moments,
(4 pts) An estimator of \(\lambda \) when \( X_{i} \overset{iid}{\sim} \mbox{Poisson}(\lambda) \) is \( \frac{\sum X_{i}}{n} \).
(4 pts) Find the maximum likelihood estimator of \(\theta \) when X_i
come from an iid exponential distribution.