Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[30,35[	32.5	1	0.006173	0.006173	0.001235
[35,40[	37.5	1	0.006173	0.012346	0.001235
[40,45[	42.5	0	0	0.012346	0
[45,50[	47.5	1	0.006173	0.018519	0.001235
[50,55[	52.5	22	0.135802	0.154321	0.02716
[55,60[	57.5	3	0.018519	0.17284	0.003704
[60,65[	62.5	9	0.055556	0.228395	0.011111
[65,70[	67.5	29	0.179012	0.407407	0.035802
[70,75[	72.5	30	0.185185	0.592593	0.037037
[75,80[	77.5	34	0.209877	0.802469	0.041975
[80,85[	82.5	19	0.117284	0.919753	0.023457
[85,90]	87.5	13	0.080247	1	0.016049