Utkarsh Mishra posted an Question
April 10, 2021 • 23:39 pm 30 points
  • IIT JAM
  • Mathematical Statistics (MS)

What is the difference between population variance and sample variance and why we use n-1 in the formula of sample variance instaead of n

what is the difference between population variance and sample variance and why we use n-1 in the formula of sample variance instaead of n

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  • Anuj s. best-answer

    mean is required for calculating variance and mean is known, and we calculate by given data it is difficult to find population mean therefore we use n-1

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