Examlex
All commercial DBMS products use some version of "username and password" as part of their security features.
Population Variance
A measure of the dispersion of all the values in a population, calculated as the average of the squared differences from the population mean.
Confidence Interval
An interval estimate around a sample mean within which an unknown population mean is expected to lie, at a certain confidence level.
Population Mean
The average of a set of characteristics, quantities, or values for all individuals or items in a defined population.
Population Variance
A measure of how data points in a population are spread out from the mean.
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