Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-2,-1[	-1.5	12	0.071429	0.071429	0.071429
[-1,0[	-0.5	11	0.065476	0.136905	0.065476
[0,1[	0.5	21	0.125	0.261905	0.125
[1,2[	1.5	40	0.238095	0.5	0.238095
[2,3[	2.5	32	0.190476	0.690476	0.190476
[3,4[	3.5	30	0.178571	0.869048	0.178571
[4,5[	4.5	9	0.053571	0.922619	0.053571
[5,6[	5.5	1	0.005952	0.928571	0.005952
[6,7[	6.5	3	0.017857	0.946429	0.017857
[7,8[	7.5	5	0.029762	0.97619	0.029762
[8,9]	8.5	4	0.02381	1	0.02381