"average" . "population mean" . "mean value" . . . . . "fitting method" . . "Mean" . . . . . "the mean" . "Average" . . "Mean" . "arithmetic mean" . . "average value" . "averaged" . "central tendency" . "average of any integrable function" . "expected" . "mean average" . "on average" . "zero-mean" . . . "sample mean" . "mean" . "means" . . . . . "Mean#Population and sample means" . .