The standard deviation is the square root of the variance.
So, if variance = 03 = 3
the std dev = sqrt(3) = 1.732
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It is 179
9+.2+.03+.004+.0006
170.63
17.039 = 1.7039 x 10
90 plus 1 plus 2 plus 03 plus 004 is equal to 100.