By which one of the following formula is the standard deviation (s) of natural numbers found in sequence?
A. $$\sigma = \sqrt {\frac{{{N^2} - 1}}{8}} $$
B. $$\sigma = \sqrt {{N^2} - \frac{1}{{12}}} $$
C. $$\sigma = \sqrt {\frac{{{N^2}}}{{12}} - 1} $$
D. $$\sigma = \sqrt {\left( {\frac{1}{{12}}} \right)\left( {{N^2} - 1} \right)} $$
Answer: Option D
This Question Belongs to Commerce >> Business Statistics And Research Methods
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