ss="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/hist.html" class="external-link">hist</a></span><span class="op">(</span><span class="va">Vacation</span><span class="op">$</span><span class="va">number</span>, main <span class="op">=</span> <span class="st">"Exercise 6.46"</span>, col <span class="op">=</span> <span class="st">"blue"</span>,</span></span>
<span class="r-in"><span>     xlab <span class="op">=</span> <span class="st">"number of days of paid holidays and vacation leave tak