If standard deviation & mean of a data set is 3 and 27, then find the coefficient of variance .

\(\frac{1}{9}\) \(\frac{2}{9}\) \(\frac{4}{9}\) \(\frac{5}{9}\)

\(\frac{1}{9}\)

Coefficient of variance = \(\frac{standard\;deviation}{mean}\) = \(\frac{3}{27}\) = \(\frac{1}{9}\)