a statistical measure of variance. Ninety-five percent of a range of values lie within 2 standard deviations of a mean value.
STANDARD DEVIATION
Meaning of STANDARD DEVIATION in English
AIDS English Glossary. Английский словарь СПИДа. 2012
a statistical measure of variance. Ninety-five percent of a range of values lie within 2 standard deviations of a mean value.
AIDS English Glossary. Английский словарь СПИДа. 2012