Tag Mean

Why spare one?

Biased nad unbiased estimators Today we will talk about one of those mysteries of statistics that few know why they are what they are. I am referring to divide by n (the sample size) or by n-1 to calculate measures…
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Meat or fish?

Mean or median? This is the difficult dilemma that presents to me every time I go to have lunch to a good restaurant. I, honestly, like better meat, but as science textbooks say I’m an omnivorous animal, and I don’t…
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The error of confidence

Mean’s confidence interval Our life is full of uncertainty. There’re many times that we want to know information that is out of our reach, and then we have to be happy with approximations. The problem is that approximations are subject…
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