** 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.

**More about Arithmetic Mean**

- Arithmetic mean is also called as average.
- Arithmetic mean or average of a set of numbers is given by = .

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

= = 5.33

**Solved Example on Arithmetic Mean**

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

D. $5

Correct Answer: A

Solution:

Step 1:The mean is the average of the prices.

Step 2:Average =

Step 3:= [Substitute the values.]

Step 4:= [Add.]

Step 5:= 6 [Divide.]

Step 6:The mean price is $6.

**Related Terms for Arithmetic Mean**

- Addition
- Average
- Divide
- Sum
- Mean