Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[5,10[	7.5	6	0.05	0.05	0.01
[10,15[	12.5	10	0.083333	0.133333	0.016667
[15,20[	17.5	18	0.15	0.283333	0.03
[20,25[	22.5	18	0.15	0.433333	0.03
[25,30[	27.5	22	0.183333	0.616667	0.036667
[30,35[	32.5	16	0.133333	0.75	0.026667
[35,40[	37.5	7	0.058333	0.808333	0.011667
[40,45[	42.5	6	0.05	0.858333	0.01
[45,50[	47.5	4	0.033333	0.891667	0.006667
[50,55[	52.5	3	0.025	0.916667	0.005
[55,60[	57.5	3	0.025	0.941667	0.005
[60,65[	62.5	2	0.016667	0.958333	0.003333
[65,70[	67.5	2	0.016667	0.975	0.003333
[70,75[	72.5	1	0.008333	0.983333	0.001667
[75,80[	77.5	0	0	0.983333	0
[80,85[	82.5	0	0	0.983333	0
[85,90]	87.5	2	0.016667	1	0.003333