Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[60,70[	65	1	0.006173	0.006173	0.000617
[70,80[	75	10	0.061728	0.067901	0.006173
[80,90[	85	21	0.12963	0.197531	0.012963
[90,100[	95	24	0.148148	0.345679	0.014815
[100,110[	105	26	0.160494	0.506173	0.016049
[110,120[	115	35	0.216049	0.722222	0.021605
[120,130[	125	26	0.160494	0.882716	0.016049
[130,140[	135	11	0.067901	0.950617	0.00679
[140,150[	145	6	0.037037	0.987654	0.003704
[150,160]	155	2	0.012346	1	0.001235