p>
<div class="figure"><span style="display:block;" id="fig:gasPrices"></span>
<img src="StatsThinking21_files/figure-html/gasPrices-1.png" alt="The price of gasoline in the US from 1930 to 2013 (obtained from http://www.thepeoplehistory.com/70yearsofpricechange.html) with or without correction for inflation (based on Consumer Price Index)." width="384" height="50%" />
<p class="caption">
Figure 4.13: The price of gasoline in the US from 1930 to 2013 (obtained from <a href="http://www.thepeoplehistory.com/7