Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-6,-4[	-5	3	0.040541	0.040541	0.02027
[-4,-2[	-3	2	0.027027	0.067568	0.013514
[-2,0[	-1	9	0.121622	0.189189	0.060811
[0,2[	1	6	0.081081	0.27027	0.040541
[2,4[	3	15	0.202703	0.472973	0.101351
[4,6[	5	24	0.324324	0.797297	0.162162
[6,8]	7	15	0.202703	1	0.101351