Question

A mother is told that her 13 year old sons height is the 85th percentile.
This implies that:
(a) Her sons height is less than that of 85% of all 13 year old boys.
(b) Her son has attained 85% of his adult height.
(c) Her sons height is 85% of the average height of all 13 year old boys.
(d) Eighty five percent of all 13 year old boys have the same height as her son.
(e) Her sons height is more than that of 85% of all 13 year old boys.