The standard deviation of the set {10, 11, 9, 11, 9} is – McqOptions

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1.	The standard deviation of the set {10, 11, 9, 11, 9} is
A.	1/âˆš5
B.	2/âˆš5
C.	3/âˆš5
D.	0
Answer» C. 3/âˆš5

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