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Secondary II • 1yr.

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

Mathematics
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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 • 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?

     So let's apply this formula to this problem:

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

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

    $$ Average = 21 $$

     Children, therefore, have an average of 21 candies.

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