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<p>of the mean number of successes in n <a href="page.php?w=Bernoulli_trial">Bernoulli trial</a>s. This is generally true.  In this case, the Cramér-Rao bound is an equality.</p>

<p><big> Estimate ? from X ~ Bern (??) </big></p>
<p>As another toy example consider a random variable  with possible outcomes 0 and 1, with probabilities  and , respectively, for some . Our goal is estimating  from observations of .</p>

<p>The Fisher information reads in this caseThis expression can also be derived directly from the change of reparametrization formula given</p><p>
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