Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[5,10[	7.5	1	0.016949	0.016949	0.00339
[10,15[	12.5	3	0.050847	0.067797	0.010169
[15,20[	17.5	6	0.101695	0.169492	0.020339
[20,25[	22.5	22	0.372881	0.542373	0.074576
[25,30[	27.5	19	0.322034	0.864407	0.064407
[30,35[	32.5	5	0.084746	0.949153	0.016949
[35,40]	37.5	3	0.050847	1	0.010169