Mean
The expected value of a random variable. Arithmetic average of a sample.
mean
The average of a set of numbers.Contrast with median,which is the middle figure in a set of numbers,and mode,which is the value that appears most often in a set of numbers.
Example: A survey of home values in a neighborhood of nine houses obtained the following values:
The mean, or average, is the total of all values divided by 9, or $143,044.The median is the middle number when the numbers are all arranged from highest to lowest,which would be house 5, or $139,850.The mode is $139,000,because it is the number that appears most often.
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