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Alia Irdina
Alia Irdina

Secondary 4 chevron_right A Maths chevron_right Malaysia

Hi . Can you teach me this question ?

Date Posted: 5 months ago
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Eric Nicholas K
Eric Nicholas K's answer
2352 answers (Tutor Details)
It's kind of 'weighted average'.

Something like, if nine people has a mass of 40 kg each and one person has a mass of 50 kg, then their overall average mass is not 45 kg, but rather total mass / total number of people which is 41 kg.

The computation of things like average speed of a journey of different speeds can also be considered as a weighted average.