<p>Please see my question and answer here.</p>

<p><a href="https://stats.stackexchange.com/questions/267534/difference-between-variance-and-standard-deviation-is-this-popular-answer-wrong">Difference between variance and standard deviation: Is this popular answer wrong?</a></p>

<p>What should I do? correct the code and statements? It needs many corrections, even include the code of calculating the likelihood.</p>
