Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[10,15[	12.5	5	0.081967	0.081967	0.016393
[15,20[	17.5	30	0.491803	0.57377	0.098361
[20,25[	22.5	14	0.229508	0.803279	0.045902
[25,30[	27.5	4	0.065574	0.868852	0.013115
[30,35]	32.5	8	0.131148	1	0.02623