Understanding Quantiles Imagine you have a distribution of numbers, in this case I have aroudn 6000 numbers that vary between 50 and 3233: {{{ > summary(myScore) Min. 1st Qu. Median Mean 3rd Qu. Max. 50.11 242.40 739.10 1135.00 1826.00 3233.00 }}} If we examine quantiles of the data: {{{ > quantile(1:max(myScore), seq(0,1,by=0.25)) 0% 25% 50% 75% 100% 1 809 1617 2425 3233 }}}