2014
Mathematics
JAMB
Find the standard deviation of 5, 4, 3, 2, 1
A.
√2
B.
√3
C.
√6
D.
√10
Correct Answer: √2
Explanation
Mean x = ∑x/n = (5+4+3+2+1)/5 =15/5 = 3
Mean x = ∑x/n = (5+4+3+2+1)/5 =15/5 = 3THIS WEEK's
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