What is the difference between the formula for variance and sample variance?
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1 Answer
Nov 5, 2015
Degrees of freedom of variance is
Explanation:
Note that
# "Variance" = 1/n sum_(i=1)^n (x_i - bar x)^2#
Also note that
# "Sample Variance" = 1/(n-1) sum_(i=1)^n (x_i - bar x)^2#
