0's.</p>
    </div>


    <div class="section level2">
    <h2 id="format">Format<a class="anchor" aria-label="anchor" href="#format"></a></h2>
    <p>A data frame with 5375 observations on the following 2 variables.</p><dl><dt>student</dt>
<dd><p>a factor with levels <code>DoesNotSmoke</code> <code>Smokes</code></p></dd>

<dt>parents</dt>
<dd><p>a factor with levels
<code>NeitherSmokes</code> <code>OneSmokes</code></p></dd>
 BothSmoke
</dl></div>
    <div class="section level2">
    <h2 id="source">Source<