Figure 4.
The chart plots f of mu sub x versus mu sub x. A histogram spans about 21 to 32, with the highest frequency near 26. A smooth curve overlays the bars. The peak occurs at about 25.89 with a spread sigma of 1.64 and a skewness of about 0.32. The distribution is approximately symmetric with slight right skew.Histogram and best-fitted probability density function (pdf) of