Natural Farming

Natural Farming

Soil - our connector!

Soil - our connector!

Saturday, June 6, 2015

Coefficient of Variation (CV)


By on 2:47 AM

A range of fiber diameters occurs within each wool sample.  A wool sample may therefore have a mean fiber diameter of 19 µ, yet the fibers within the sample may vary from 7 µ to 37 µ.

Two criteria are used to measure the distribution, namely CV and standard deviation (SD).  CV is a function of SD, as SD is used in the formula to calculate CV.

CV (%) = Standard deviation * 100

                     Mean fiber diameter

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