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I have $X \sim \text{Poisson}(\theta)$

I need to see how least square estimator of $\theta$ is obtained. Is there anything online showing that?

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  • $\begingroup$ This seems to be essentially the same question as this one... in the same class, perhaps? $\endgroup$ – Glen_b -Reinstate Monica Nov 2 '14 at 3:44
  • $\begingroup$ I did see this one, but it did not really help me. What I want is the proof of the least square estimator of $\theta$ $\endgroup$ – Günal Nov 2 '14 at 10:25