Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[80,90[	85	1	0.008333	0.008333	0.000833
[90,100[	95	3	0.025	0.033333	0.0025
[100,110[	105	13	0.108333	0.141667	0.010833
[110,120[	115	17	0.141667	0.283333	0.014167
[120,130[	125	32	0.266667	0.55	0.026667
[130,140[	135	33	0.275	0.825	0.0275
[140,150[	145	12	0.1	0.925	0.01
[150,160[	155	5	0.041667	0.966667	0.004167
[160,170[	165	2	0.016667	0.983333	0.001667
[170,180]	175	2	0.016667	1	0.001667