ydmuley wrote:
If the mean of list A is 6.8 and the standard deviation is 3.6, then how many elements of list A are within 1 unit of standard deviation of the mean?
A = {2, 9, 2, 6, 9, 10, 7, 4, 5, 14}
A. 3
B. 4
C. 5
D. 6
E. 7
Pl post it in correct forum that is PS and not DS.
Also it is not 700 level Q, involves straight calculations.
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