Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,10[	5	8	0.008889	0.008889	0.000889
[10,20[	15	152	0.168889	0.177778	0.016889
[20,30[	25	602	0.668889	0.846667	0.066889
[30,40[	35	101	0.112222	0.958889	0.011222
[40,50[	45	20	0.022222	0.981111	0.002222
[50,60[	55	16	0.017778	0.998889	0.001778
[60,70]	65	1	0.001111	1	0.000111