Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-2,-1.5[	-1.75	1	0.002778	0.002778	0.005556
[-1.5,-1[	-1.25	8	0.022222	0.025	0.044444
[-1,-0.5[	-0.75	45	0.125	0.15	0.25
[-0.5,0[	-0.25	141	0.391667	0.541667	0.783333
[0,0.5[	0.25	105	0.291667	0.833333	0.583333
[0.5,1[	0.75	46	0.127778	0.961111	0.255556
[1,1.5[	1.25	10	0.027778	0.988889	0.055556
[1.5,2]	1.75	4	0.011111	1	0.022222