Median weight of 100 children was 16 kgs. The standard deviation was 8.calculate the percentage coefficient of variance.: (A) 50%, (B) 35%, (C) 45%, (D) 55%
Answer is A. Coefficient of Variation (COV)


COV = SD × 100

Mean or Median
Is SD expressed as percentage of mean OR median.

CV = SD / MEAN × 100 = 8/16 × 100 = 50%