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The following information relates to a sample of size . The variance is
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a
6.63
b
16
c
22
d
44
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Correct option is D
Variance =Σxi2n−Σxin2=1800060−960602=300−256=44Similar Questions
Ina series of observations, S.D. a 7 and mean is 28, the coefficient of variation is
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