Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[60,70[	65	5	0.069444	0.069444	0.006944
[70,80[	75	12	0.166667	0.236111	0.016667
[80,90[	85	8	0.111111	0.347222	0.011111
[90,100[	95	10	0.138889	0.486111	0.013889
[100,110[	105	16	0.222222	0.708333	0.022222
[110,120[	115	4	0.055556	0.763889	0.005556
[120,130[	125	7	0.097222	0.861111	0.009722
[130,140[	135	8	0.111111	0.972222	0.011111
[140,150[	145	0	0	0.972222	0
[150,160[	155	0	0	0.972222	0
[160,170[	165	1	0.013889	0.986111	0.001389
[170,180]	175	1	0.013889	1	0.001389