The average height for an adult male in the United States is 5 feet 9.2 inches (69.2 inches). This data was provided by the National Center for Health Statistics from a survey conducted during the period of 1999-2002. For a 15 year old male the average height would be 67 inches (50th percentile) and the normal range would be from 63 inches (10th percentile) to 72 inches (90th percentile).
15, so you're taller yes. The hops is good, I'm just saying you'll prob end up at the height of a guard or small forward by time you hit college. There are plenty of people who're 6'3+ at age 15 still, also plenty of people at 5'4, and growth spurts do happen.
::shrug:: My highschool had people who were 7'0 tall before they graduated, and freshmen boys who were around 6'5. It varies. the 9 other people your age comment, 1 of the 9 others would be taller than you on average statistically.
Remember these are just based off of America. Basketball incorporates people from other countries as well, and certain other countries have taller average heights.
Essentially, I'm just trying to encourage you to not focus on being a big man, but being an all-around player, that way if you don't end up 6'8+ you'll still have enough of the skillset for where you'll be playing, that it won't effect you. Where if you only train and work your bigman skillset, you'd be forced into playing an undersized bigman, which is fine for college, but won't get you any farther *typically*