Abstract
THE irregular distribution of the mass of textile materials (yarns, rovings, slivers and tops) per unit length is by preference expressed in terms of the standard deviation : in which x̄ is the mean mass of the textile material per unit length, and n the number of observations.
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GERMANS, F. Automatic Computation of the Standard Deviation. Nature 163, 25–26 (1949). https://doi.org/10.1038/163025a0
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DOI: https://doi.org/10.1038/163025a0
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