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  1. 2

    n or n-1 for sample standard deviation?

    That makes sense, thanks a lot
  2. 2

    n or n-1 for sample standard deviation?

    That's interesting, I thought sample variance is a general reference to whenever we are dealing with samples. So, for example, if there is a factory only produces pens and there are 1000 pens (population) produced and 100 are chosen as samples. And question asks for the standard deviation from...
  3. 2

    n or n-1 for sample standard deviation?

    So I was doing some 2020 school trial papers and I found that none have included sqrt(p(1-p)/(n-1)) as the answer for sample standard deviation. Just wondering what do you guys think, would n-1 be safer in HSC or n will be fine?
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