If standard deviation & mean of a data set is 33 and 77, then find the coefficient of variance .

\(\frac{3}{7}\) \(\frac{4}{7}\) \(\frac{2}{7}\) \(\frac{3}{8}\)

\(\frac{3}{7}\)

Coefficient of variance = \(\frac{standard\;deviation}{mean}\) = \(\frac{33}{77}\) = \(\frac{3}{7}\)