Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[50,60[	55	3	0.035714	0.035714	0.003571
[60,70[	65	6	0.071429	0.107143	0.007143
[70,80[	75	1	0.011905	0.119048	0.00119
[80,90[	85	20	0.238095	0.357143	0.02381
[90,100[	95	10	0.119048	0.47619	0.011905
[100,110[	105	6	0.071429	0.547619	0.007143
[110,120[	115	2	0.02381	0.571429	0.002381
[120,130[	125	8	0.095238	0.666667	0.009524
[130,140[	135	9	0.107143	0.77381	0.010714
[140,150[	145	10	0.119048	0.892857	0.011905
[150,160[	155	8	0.095238	0.988095	0.009524
[160,170]	165	1	0.011905	1	0.00119