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Student Question

Secondary II â€¢ 8mo.

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.

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Team Alloprof â€¢ 8mo. 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