What information does a histogram contain?
There are many variables to be taken into account and if a breeder is promoting solely on the basis of microns, you should ask to see the histogram and inquire as to what age the measurement was taken. The histogram will show average fiber diameter, standard deviation and coefficient of variation. The standard deviation indicates the amount of variation in the sample and the coefficient of variation is simply an expression of deviation as a percentage. The lower the deviation and coefficient of variation, the more uniform the fiber and lower the ‘prickle factor’.
