Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[12,14[	13	3	0.035714	0.035714	0.017857
[14,16[	15	3	0.035714	0.071429	0.017857
[16,18[	17	9	0.107143	0.178571	0.053571
[18,20[	19	24	0.285714	0.464286	0.142857
[20,22[	21	15	0.178571	0.642857	0.089286
[22,24[	23	18	0.214286	0.857143	0.107143
[24,26[	25	9	0.107143	0.964286	0.053571
[26,28[	27	0	0	0.964286	0
[28,30]	29	3	0.035714	1	0.017857