\BeginKnitrBlock{exercise}\iffalse{-91-84-104-101-32-109-111-100-101-93-}\fi{}<div class="exercise"><span class="exercise" id="exr:unnamed-chunk-21"><strong>(\#exr:unnamed-chunk-21)  \iffalse (The mode) \fi{} </strong></span>What's the mode for nose colour in Table \@ref(tab:dataexcerpt)? What's the mode for height?</div>\EndKnitrBlock{exercise}