## Definition Of Arithmetic Mean

Arithmetic Mean of a set of numbers is the sum of the numbers divided by the number of items in the set.

Arithmetic mean is also called as average.

Arithmetic mean or average of a set of numbers  is
given by  =

### Examples of Arithmetic Mean

Arithmetic mean of three numbers 3, 6, and 7 can be calculated as: Arithmetic mean =
=  = 5.33

### Solved Example on Arithmetic Mean

#### Ques: The prices of cheese pizza in five different pizza delivery shops are $5,$4, $6,$8, and $7. Find the mean of the prices. ##### Choices: A.$6
B. $4 C.$7