The Average Calculator finds the arithmetic mean of a set of numbers and shows the steps.
Average = 22.1428571429
| Average (mean) | 22.1428571429 |
| Sum | 155 |
| Count | 7 |
Calculation steps:
| Sum of values | 10 + 2 + 38 + 23 + 38 + 23 + 21 = 155 |
| Divide by count | 155 ÷ 7 = 22.1428571429 |
The average, or arithmetic mean, is the sum of a set of values divided by how many values there are. It describes a typical value. For 10, 2, 38, 23, 38, 23, 21: 155 ÷ 7 = 22.142857.
The median is the middle value and the mode the most frequent; see the Mean, Median, Mode, Range Calculator. A weighted average gives some values more importance, such as course credits in a GPA. The geometric mean suits growth rates.
A few very large or small values pull the mean away from most of the data. Average income is higher than median income because of a few very high earners.
Can the average be a value not in the list? Yes.
How do I average percentages? Weight them by the size of each group.
What separators can I use? Commas, spaces or new lines.