a list 0f 102 data

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a list 0f 102 data

by sanju09 » Wed Apr 08, 2009 2:49 am
A certain list of 100 data has an average of 6 and a standard deviation of d, where d is positive. Which of the following pairs of data, when added to the list, must result in a list 0f 102 data with standard deviation less than d?

A. -6 and 0

B. 0 and 0

C. 0 and 6

D. 0 and 12

E. 6 and 6

OA E
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