Figure . Distributions of standard deviations calculated from 5 predicted retention times for groups with 0, 1, and 5 "yellow cards". The distribution for the 5 "yellow cards" is scaled so that the area to the left of the grey vertical line matches the respective area for the distribution with 0 "yellow cards". The part filled with red hatching illustrates the difference between distributions obtained for groups with 0 and 5 "yellow cards".