Question 873947: find the range, the standard deviation and the variance for the given sample: 2, 7, 14, 22, 30, 48
Answer by ewatrrr(24785)   (Show Source):
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Hi
2, 7, 14, 22, 30, 48
range: 46
SD: 16.826 Using (n-1)
variance: (16.826)^2
x x -20.5 (x-19.5)^2
2 -18.5 342.25
7 -13.5 182.25
14 -6.5 42.25
22 1.5 2.25
30 9.5 90.25
48 27.5 756.25
sum 123 0 1415.5
sum/6 20.5 sum/5 283.1 Variance
16.82557577 = SD sqrt(Variance)
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