Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[60,70[	65	5	0.046296	0.046296	0.00463
[70,80[	75	18	0.166667	0.212963	0.016667
[80,90[	85	12	0.111111	0.324074	0.011111
[90,100[	95	19	0.175926	0.5	0.017593
[100,110[	105	8	0.074074	0.574074	0.007407
[110,120[	115	10	0.092593	0.666667	0.009259
[120,130[	125	19	0.175926	0.842593	0.017593
[130,140[	135	4	0.037037	0.87963	0.003704
[140,150[	145	9	0.083333	0.962963	0.008333
[150,160[	155	2	0.018519	0.981481	0.001852
[160,170]	165	2	0.018519	1	0.001852