Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[25,30[	27.5	9	0.125	0.125	0.025
[30,35[	32.5	26	0.361111	0.486111	0.072222
[35,40[	37.5	26	0.361111	0.847222	0.072222
[40,45[	42.5	9	0.125	0.972222	0.025
[45,50[	47.5	1	0.013889	0.986111	0.002778
[50,55[	52.5	0	0	0.986111	0
[55,60[	57.5	0	0	0.986111	0
[60,65]	62.5	1	0.013889	1	0.002778