Q13 of 37 Page 295

Mean of 100 items is 48 and their standard deviation is 10. Find the sum of all the items and the sum of the squares of all the items.

Mean of 100 items = 48


Standard deviation SD = 10


To find :


To find :


Formula for


= 48 =


Sum of all the items


To find:


SD2 =


100 = 482


240400


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