Figure 2.

Histogram of residuals¹ for total BMS² after transformation³. ¹Residuals come from the model y = Xb + e, where fixed effects in Xb are identical to those used in the mixed model explained in the text; ²since total BMS is the sum of BMS on the three body regions, it ranges from 0 to 27 (see Table 1), ³for the male and female populations, skewness for total BMS corrected for fixed effects was equal to 1.54 and 0.96, respectively and kurtosis was equal to 3.1 and 0.43, respectively; ²the transformation was y_t = ln(y + 100).