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Question

If the standard deviation of number 3,4,8,14,16 is 5.21, then the standard deviation of number 6,7,11,17,19 is


A
1.74
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B
5.21
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C
10.42
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D
15.63
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Solution

The correct option is B 5.21
The standard deviation is independent of the change of origin.

It means if the standard deviation of x1,x2,x3,....,xn is σ, then the standard deviation of x1+a,x2+a,x3+a,....,xn+a is also σ.

Mathematics

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