Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-80,-60[	-70	2	0.007435	0.007435	0.000372
[-60,-40[	-50	9	0.033457	0.040892	0.001673
[-40,-20[	-30	40	0.148699	0.189591	0.007435
[-20,0[	-10	75	0.27881	0.468401	0.013941
[0,20[	10	98	0.364312	0.832714	0.018216
[20,40[	30	36	0.133829	0.966543	0.006691
[40,60[	50	8	0.02974	0.996283	0.001487
[60,80[	70	0	0	0.996283	0
[80,100[	90	0	0	0.996283	0
[100,120]	110	1	0.003717	1	0.000186