The **mean** (also called the **average**) is the sum of a set of numbers divided by the count of numbers in the set. It provides a measure of central tendency, helping you understand the typical value in a dataset.
The formula to calculate the mean is:
Mean = (Sum of all numbers) / (Count of numbers)
Example 1: Find the mean of the numbers 5, 8, 12, and 15.
Step 1: Add the numbers together: 5 + 8 + 12 + 15 = 40 Step 2: Count how many numbers there are: 4 Step 3: Divide the sum by the count: 40 / 4 = 10
Mean = 10
Find the mean of the following numbers:
7, 13, 22, 19, 10