平均值计算器 — 公式

## How to Calculate an Average

### Formula

**Average = Sum of Values / Number of Values**

Also called the arithmetic mean. Add up all the numbers and divide by how many numbers there are.

计算示例

Find the average of 85, 90, 78, 92, and 88.

  1. Sum = 85 + 90 + 78 + 92 + 88 = 433
  2. Count = 5
  3. Average = 433 / 5 = 86.6