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If the standard deviation of 3, 8, 6, 10...

If the standard deviation of 3, 8, 6, 10, 12, 9, 11, 10, 12, 7 is 2.71, then the standard deviation of 30, 80, 60, 100, 120, 90, 110, 100, 120, 70 is

A

2.71

B

27.1

C

`(2.71) sqrt(10)`

D

`(2.71) sqrt(2)`

Text Solution

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The correct Answer is:
B
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