Comments (2)
Hi @tooHotSpot, thanks for your comment!
If I understand your point correctly, there is actually no error in the formula. The difference comes from the fact that the formula in the header is for sigma (the variance), whereas the formula in the end is for the sum of squared mean differences, which is only a numerator in sigma.
The sum of squared mean differences equals sigma times n. Therefore, if you divide the formula in the end by n, component by component, you should get the variance formula at the top.
I hope this helps! :)
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Sorry for late reply, please! You are right, thanks!
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