Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[60,70[	65	1	0.013889	0.013889	0.001389
[70,80[	75	18	0.25	0.263889	0.025
[80,90[	85	26	0.361111	0.625	0.036111
[90,100[	95	19	0.263889	0.888889	0.026389
[100,110]	105	8	0.111111	1	0.011111