Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[35,40[	37.5	3	0.015	0.015	0.003
[40,45[	42.5	7	0.035	0.05	0.007
[45,50[	47.5	14	0.07	0.12	0.014
[50,55[	52.5	27	0.135	0.255	0.027
[55,60[	57.5	44	0.22	0.475	0.044
[60,65[	62.5	37	0.185	0.66	0.037
[65,70[	67.5	24	0.12	0.78	0.024
[70,75[	72.5	24	0.12	0.9	0.024
[75,80[	77.5	15	0.075	0.975	0.015
[80,85[	82.5	4	0.02	0.995	0.004
[85,90]	87.5	1	0.005	1	0.001