rning: </span>data set ‘FamilySmoking’ not found</span>
<span class="r-in"><span><span class="fu"><a href="https://www.mosaic-web.org/mosaic/reference/xchisq.test.html" class="external-link">xchisq.test</a></span><span class="op">(</span> <span class="fu"><a href="https://rdrr.io/pkg/mosaicCore/man/tally.html" class="external-link">tally</a></span><span class="op">(</span><span class="va">parents</span> <span class="op">~</span> <span class="va">student</span>, data <span class="op">=</span> <span class