Statistics Part 1

Section: Mathematics

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Question : 46 of 100

Marks: +1, -0

If

n

∑

i=1

(xi−a)=n and

n

∑

i=1

(xi−a)2=na,(n,a>1) then the standard deviation of n observations x1,x2,..,xn is

[6 Sep 2020 Shift 1]

n√a−1
√a−1
a−1
√n(a−1)

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