Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-40,-30[	-35	7	0.019444	0.019444	0.001944
[-30,-20[	-25	46	0.127778	0.147222	0.012778
[-20,-10[	-15	37	0.102778	0.25	0.010278
[-10,0[	-5	90	0.25	0.5	0.025
[0,10[	5	86	0.238889	0.738889	0.023889
[10,20[	15	54	0.15	0.888889	0.015
[20,30[	25	18	0.05	0.938889	0.005
[30,40[	35	12	0.033333	0.972222	0.003333
[40,50[	45	5	0.013889	0.986111	0.001389
[50,60[	55	1	0.002778	0.988889	0.000278
[60,70[	65	0	0	0.988889	0
[70,80[	75	1	0.002778	0.991667	0.000278
[80,90[	85	1	0.002778	0.994444	0.000278
[90,100]	95	2	0.005556	1	0.000556