What does Stan's current weight-for-age percentile say about his weight? (In other words, how is a growth chart interpreted?) In a group of 100 five month old boys lined up in a row, ~2-5 would be smaller than Stan and ~95-98 would be bigger. He is smaller than most boys his age. In a group of 100 five month old boys lined up in a row, ~2-5 would be smaller than Stan and ~95-98 would be bigger. His growth is above average. In a group of 100 five month old boys lined up in a row, ~95-98 would be smaller than Stan and ~2-5 would be bigger. His growth falls near the high end of normal. In a group of 100 5 month old boys lined up in a row, ~50 would be smaller than Stan and ~50 would be bigger. His growth is average