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The '''mean''' is of a group of numbers is one way to express their [[average]].  To find the mean, the numbers are added and divided by the quantity of numbers in the group.  For example: to find the mean of 3, 4, 6, and 7, we add them together: <math>3 + 4 + 6 + 7 = 20</math>.  Then we divide them by the quantity of numbers in the group, which is 4.  <math>20/4 = 5</math>.

The mean is a term in statistics.  The mean is the average value in a set of measurements. The mean is the sum of a set of numbers divided by how many numbers are in the set.

 

The mean of a group of numbers is one way to express their [[average]].  To find the mean, the numbers are added and divided by the quantity of numbers in the group.  For example: to find the mean of 3, 4, 6, and 7, we add them together: <math>3 + 4 + 6 + 7 = 20</math>.  Then we divide them by the quantity of numbers in the group, which is 4.  <math>20/4 = 5</math>.

Most spreadsheet programs and computer languages consider ''average'' to be the mean, but there are three common types of [[average]]. Often the [[median]] is far from the [[mean]], when values are skewed in one direction (see also [[mode]]).

Most spreadsheet programs and computer languages consider ''average'' to be the mean, but there are three common types of [[average]]. Often the [[median]] is far from the [[mean]], when values are skewed in one direction (see also [[mode]]).