AP Statistics Help??

Ideally, for an unbiased dice, equally unbiased rolls(one can get tired repeating the action) each side should show up exactly 1000 times. However it does not help in real life. You have tried to create your distribution of frequencies around value=1000(reasonable umption). However, examine the spread and deviations. Your two extreme values(min & max, i.e. 988 and 1013) have approx. same deviation away from 1000; same for other pairs with error of (+/-)1. You have maintained the shape of frequency curve, but frequencies are difficult to believe.