Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,5[	2.5	1	0.006173	0.006173	0.001235
[5,10[	7.5	0	0	0.006173	0
[10,15[	12.5	1	0.006173	0.012346	0.001235
[15,20[	17.5	0	0	0.012346	0
[20,25[	22.5	0	0	0.012346	0
[25,30[	27.5	0	0	0.012346	0
[30,35[	32.5	21	0.12963	0.141975	0.025926
[35,40[	37.5	10	0.061728	0.203704	0.012346
[40,45[	42.5	54	0.333333	0.537037	0.066667
[45,50[	47.5	53	0.32716	0.864198	0.065432
[50,55]	52.5	22	0.135802	1	0.02716