Average Calculator
This Average Calculator helps you find the average of a list of numbers and shows each step clearly. It works by adding all the values together and then dividing the total by the number of values in the list. This makes it useful for checking answers, understanding how the average is calculated, and practising statistics step by step.
Step-by-step method
- List the numbers and count how many there are.
- Add the numbers to get the total sum.
- Divide the sum by the count to get the average.
Formula:
| Σx |
| n |
Example 1: 3, 1, 4, 2
Step 1 - List the numbers and count how many there are.
In this problem: The numbers are 3, 1, 4, 2, so the count is n = 4.
Step 2 - Add the numbers to get the total sum.
In this problem: Add the numbers to get the sum: Σx = 10.
Step 3 - Divide the sum by the count to get the average.
In this problem: Divide the sum by the count: Average = 10 ÷ 4 = 2.5.
| 10 |
| 4 |
Final answer: Average = 2.5
Example 2: 10, 20, 30, 40, 50
Step 1 - List the numbers and count how many there are.
In this problem: The numbers are 10, 20, 30, 40, 50, so the count is n = 5.
Step 2 - Add the numbers to get the total sum.
In this problem: Add the numbers to get the sum: Σx = 150.
Step 3 - Divide the sum by the count to get the average.
In this problem: Divide the sum by the count: Average = 150 ÷ 5 = 30.
| 150 |
| 5 |
Final answer: Average = 30
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