Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[10.5,11[	10.75	2	0.033333	0.033333	0.066667
[11,11.5[	11.25	6	0.1	0.133333	0.2
[11.5,12[	11.75	18	0.3	0.433333	0.6
[12,12.5[	12.25	12	0.2	0.633333	0.4
[12.5,13]	12.75	22	0.366667	1	0.733333