Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,5[	2.5	1	0.010309	0.010309	0.002062
[5,10[	7.5	5	0.051546	0.061856	0.010309
[10,15[	12.5	35	0.360825	0.42268	0.072165
[15,20[	17.5	47	0.484536	0.907216	0.096907
[20,25[	22.5	4	0.041237	0.948454	0.008247
[25,30]	27.5	5	0.051546	1	0.010309