Find the standard deviation of 5, 4, 3, 2, 1
...Find the standard deviation of 5, 4, 3, 2, 1
√2
√3
√6
√10
Correct answer is A
Mean x = ∑xn
=5+4+3+2+15
=155
= 3
xd=x−3d25244113002−111−24∑d2+10
Hence, standard deviation;
=√∑d2n=√105
=√2
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