**ATTRIBUTE-NAME**Arithmetic standard deviation of aggregation**ATTRIBUTE-DESCRIPTION**The traditional computation of the sample standard deviation, where the divisor is N-1 not N. The square root of the quotient of the sum of the squared deviations from the arithmetic mean and the number of measurements in the aggregation minus 1.**DOMAIN**- A floating point number in the range 0.087 to 44,300 milligauss.