Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[70,80[	75	29	0.345238	0.345238	0.034524
[80,90[	85	21	0.25	0.595238	0.025
[90,100[	95	26	0.309524	0.904762	0.030952
[100,110]	105	8	0.095238	1	0.009524