Convert the distribution of nanopillar heights on page 26 into a distribution having the classes (205, 245],(245,325],(325,365],(365,405], where the right-hand endpoint is included. Draw two histograms of this distribution, one in which the class frequencies are given by the heights of the rectangles and one in which the class frequencies are given by the area of the rectangles. Explain why the first of these histograms gives a very misleading picture.