## When Helping Means Winning contest

Ask a school-related question in the Help Zone and you could win one of three \$500 scholarships.

# Help Zone

### Student Question

Secondary II â€¢ 1yr.

How do you calculate an average? I don't remember...

Mathematics

## Explanations (1)

• Explanation from Alloprof

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Options
Team Alloprof â€¢ 1yr. edited September 2021

Hi!

To calculate an average, you can use the following formula:

$$Average = \frac {Sum\ of\ all\ data} {Number\ of\ data}$$

Here is an example:

Julie has 23 candies, Marc has 19 and Sophie has 21. What is the average number of candies each of them has?

Â So let's apply this formula to this problem:

$$Average = \frac {23 + 19 + 21} {3}$$

$$Average = \frac {63} {3}$$

$$Average = 21$$

Â Children, therefore, have an average of 21 candies.

Feel free to ask us more questions if you have any!Â