AVERAGE OF A SET OF NUMBERS

To find the average (or mean) of a set of numbers, follow these steps:

Steps to Calculate the Average:

1. Sum the Numbers: Add all the numbers in the set together.
2. Count the Numbers: Determine the total number of values in the set.
3. Divide the Sum by the Count: Divide the total sum by the number of values.

Formula:

$\text{Average} = \frac{\text{Sum of All Numbers}}{\text{Total Count of Numbers}}$

Example Calculation:

Let’s find the average of the set: 8, 12, 5, 10, 7.

1. Sum the Numbers: $8 + 12 + 5 + 10 + 7 = 42$
   
2. Count the Numbers: There are 5 numbers.
3. Calculate the Average: $\frac{42}{5} = 8.4$
   

So, the average of the set is 8.4.