oisson distribution.</p></dd>

</dl></div>
    <div class="section level2">
    <h2 id="details">Details<a class="anchor" aria-label="anchor" href="#details"></a></h2>
    <p>This very simple test amounts to compute the test statistic
$$D = s^2 / \sigma^2 \times (n - 1)$$
where \(s^2\) is the observed variance, \(\sigma^2\) is the theoretical variance, and \(n\) is the number of observations. The test statistic is the compared to the critical value of a Chi-square distribution with \(n-1\) degrees of freedo