Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-2,-1[	-1.5	12	0.071006	0.071006	0.071006
[-1,0[	-0.5	11	0.065089	0.136095	0.065089
[0,1[	0.5	21	0.12426	0.260355	0.12426
[1,2[	1.5	41	0.242604	0.502959	0.242604
[2,3[	2.5	31	0.183432	0.686391	0.183432
[3,4[	3.5	31	0.183432	0.869822	0.183432
[4,5[	4.5	9	0.053254	0.923077	0.053254
[5,6[	5.5	1	0.005917	0.928994	0.005917
[6,7[	6.5	3	0.017751	0.946746	0.017751
[7,8[	7.5	5	0.029586	0.976331	0.029586
[8,9]	8.5	4	0.023669	1	0.023669