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secondary 3 | E Maths
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Jenny
Jenny

secondary 3 chevron_right E Maths chevron_right Singapore

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Date Posted: 3 years ago
Views: 207

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Julia Sim
Julia Sim's answer
4 answers (Tutor Details)
1st
This type of question has to be done using calculator during exams because you won’t have during exam.
Go to your calculator ( casio ) Mode - stat - 1 - type in the numbers. X would be the middle of each range . After you are done , press AC - shift -1 - 4 - 2( for mean)
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Zhe Xun
Zhe Xun's answer
113 answers (Tutor Details)
I think you can estimate by taking marks to be the midpoint of the range given.