Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[60,70[	65	1	0.016667	0.016667	0.001667
[70,80[	75	9	0.15	0.166667	0.015
[80,90[	85	4	0.066667	0.233333	0.006667
[90,100[	95	4	0.066667	0.3	0.006667
[100,110[	105	22	0.366667	0.666667	0.036667
[110,120[	115	17	0.283333	0.95	0.028333
[120,130]	125	3	0.05	1	0.005