Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[4,6[	5	1	0.005917	0.005917	0.003067
[6,8[	7	1	0.005917	0.011834	0.003067
[8,10[	9	0	0	0.011834	0
[10,12[	11	3	0.017751	0.029586	0.009202
[12,14[	13	11	0.065089	0.094675	0.033742
[14,16[	15	37	0.218935	0.313609	0.113497
[16,18[	17	50	0.295858	0.609467	0.153374
[18,20]	19	60	0.35503	0.964497	0.184049