1.

If the standard deviation of the observations \[-5,-4,-3,-2,-1,0,1,2,3,4,5\] is \[\sqrt{10}\]. The standard deviation of observations \[15,16,17,18,19,20,21,22,23,24,25\] will be

A. \[\sqrt{10}+20\]
B. \[\sqrt{10}+10\]
C. \[\sqrt{10}\]
D. None of these
Answer» D. None of these


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