Definition
Suppose we have sample space . Then the arithmetic mean is defined via the equation
- .
If the list is a statistical population, then the mean of that population is called a population mean. If the list is a statistical sample, we call the resulting statistic a sample mean.
The arithmetic mean of a variable is often denoted by a bar, for example (read "x bar") would be the mean of some sample space .
Read more about this topic: Arithmetic Mean
Famous quotes containing the word definition:
“Beauty, like all other qualities presented to human experience, is relative; and the definition of it becomes unmeaning and useless in proportion to its abstractness. To define beauty not in the most abstract, but in the most concrete terms possible, not to find a universal formula for it, but the formula which expresses most adequately this or that special manifestation of it, is the aim of the true student of aesthetics.”
—Walter Pater (1839–1894)
“Perhaps the best definition of progress would be the continuing efforts of men and women to narrow the gap between the convenience of the powers that be and the unwritten charter.”
—Nadine Gordimer (b. 1923)
“One definition of man is “an intelligence served by organs.””
—Ralph Waldo Emerson (1803–1882)