Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[35,40[	37.5	9	0.07438	0.07438	0.014876
[40,45[	42.5	11	0.090909	0.165289	0.018182
[45,50[	47.5	23	0.190083	0.355372	0.038017
[50,55[	52.5	44	0.363636	0.719008	0.072727
[55,60[	57.5	24	0.198347	0.917355	0.039669
[60,65[	62.5	7	0.057851	0.975207	0.01157
[65,70]	67.5	3	0.024793	1	0.004959