Tham KY's answer to Xiaoyang's Junior College 2 H2 Maths question.
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Correct? Qn6 in next photo...
Date Posted:
5 years ago
Thank you! But the answer for part 2 is 0.682, idk why u divide by 49 and 99, shldnt it be 50&100
Need to use the unbiased est pop variance, see the line before CLT, using formula it is n/(n-1) * sample variance.
So by CLT, divide 100 and 50 respectively, the variance become sample variance divide (n-1).
So by CLT, divide 100 and 50 respectively, the variance become sample variance divide (n-1).
I think thats out of syllabas? Coz didnt learn tat before :0
It is in the formula sheet, with a little change... See another photo I attached...
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