Core Concepts
Mean

Mean

Concept

The mean, commonly known as the average, is a measure of central tendency in a data set. It provides a "central" value around which the data points in the set cluster. To calculate the mean of a data set, you sum all the values and then divide by the total number of values. Mathematically, it is represented as:

Mean=Sum of all valuesTotal number of values\text{Mean} = \frac{\text{Sum of all values}}{\text{Total number of values}}

For example, if you have a data set containing the numbers [1,2,3,4,5], the mean would be:

Mean=1+2+3+4+55=3\text{Mean} = \frac{1+2+3+4+5}{5} = 3
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