Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[80,90[	85	2	0.02381	0.02381	0.002381
[90,100[	95	10	0.119048	0.142857	0.011905
[100,110[	105	24	0.285714	0.428571	0.028571
[110,120[	115	20	0.238095	0.666667	0.02381
[120,130[	125	15	0.178571	0.845238	0.017857
[130,140[	135	10	0.119048	0.964286	0.011905
[140,150]	145	3	0.035714	1	0.003571