Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[4,6[	5	4	0.025641	0.025641	0.012821
[6,8[	7	7	0.044872	0.070513	0.022436
[8,10[	9	19	0.121795	0.192308	0.060897
[10,12[	11	31	0.198718	0.391026	0.099359
[12,14[	13	39	0.25	0.641026	0.125
[14,16[	15	36	0.230769	0.871795	0.115385
[16,18[	17	19	0.121795	0.99359	0.060897
[18,20]	19	1	0.00641	1	0.003205