Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[5,10[	7.5	1	0.011236	0.011236	0.002247
[10,15[	12.5	4	0.044944	0.05618	0.008989
[15,20[	17.5	7	0.078652	0.134831	0.01573
[20,25[	22.5	34	0.382022	0.516854	0.076404
[25,30[	27.5	30	0.337079	0.853933	0.067416
[30,35[	32.5	9	0.101124	0.955056	0.020225
[35,40[	37.5	2	0.022472	0.977528	0.004494
[40,45[	42.5	1	0.011236	0.988764	0.002247
[45,50]	47.5	1	0.011236	1	0.002247