The mean, also known as the average, is calculated by adding up all the numbers in a set and then dividing that sum by the count of numbers in the set. For example, to find the mean of the numbers 6, 11, and 7:
- Add the numbers: 6+11+7=246+11+7=246+11+7=24
- Divide by the number of numbers (3): 24÷3=824\div 3=824÷3=8
So, the mean is 8. This method works with positive and negative numbers as well. The mean represents a balanced value around which the numbers are "flattened out".
In summary, to do (calculate) the mean:
- Add all the numbers in your data set.
- Divide the total sum by how many numbers you added.
This gives you the mean (or average) value of the set of numbers.
