# Mean - EXAMPLE

### data set scores central

The sum of the values of the points in a data set divided by the number of points.

## EXAMPLE

**HEIGHTS IN CENTIMETERS OF FIFTEEN CHILDREN ARE:**

124, 137, 144, 136, 157, 129, 130, 131, 125, 128, 133, 133, 129

Sum equals 1995; divide by 15 to get the mean of **133.**

In statistics, the mean refers to the value that results when all the scores in a data set are added together and the total is divided by the number of scores in the data set. In the example, the mean for a set of fifteen data points is calculated. The mean balances the scores on either side of it. Also called the arithmetic mean or average, the mean is one of the measures of central tendency; the others being the **median** and the **mode**.

## Further Reading

Peavy, J. Virgil. *Descriptive Statistics: Measures of Central Tendency and Dispersion.* Atlanta, GA: U.S. Dept. of Health and Human Services/Public Health Service, Centers for Disease Control, 1981.

## User Comments

almost 4 years ago

candy

iDontt undestand this

over 3 years ago

how do you know to what you divide it

almost 4 years ago

candy

iDontt undestand this

almost 4 years ago

candy

iDontt undestand this

over 3 years ago

i dontt understand of full birthday mean