Tham KY's answer to stella kho's Junior College 1 H2 Maths question.
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Correct?
Date Posted:
7 years ago
I thought only when mean is 0 then you can assume the mean is mid point between a and -a?
Haaa! The diagram may not be right, I just wanted to present the idea of modulus...
By assuming left side tail area = right side tail area. The assumption is already there no?
Hahaha shit I'm weak sorry
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