Median weight of 100 children was 12 kgs. The Standard Deviation was 3.Calculate the percentage coefficient of variance -

We cannot calculate coefficient of variance here, because value of mean has not been provided (value of median is given). Only in standard normal curve mean = median. But in that case both are '0' (In standard normal curve mean = median = mode = 0) I am clueless here. It you take, value of median as mean than the answer will be 25%. 3/12 x 100 = 25%