The standard deviation of 25 numbers is 40. If each of the numbers is increased by 5, then the new standard deviation will be [DCE 1995]

The standard deviation of 25 numbers is 40. If each of the numbers is

1.	The standard deviation of 25 numbers is 40. If each of the numbers is increased by 5, then the new standard deviation will be [DCE 1995]
A.	40
B.	45
C.	\[40+\frac{21}{25}\]
D.	None of these
Answer» B. 45

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The standard deviation of 25 numbers is 40. If each of the numbers is increased by 5, then the new standard deviation will be [DCE 1995]

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