Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[55,60[	57.5	8	0.1	0.1	0.02
[60,65[	62.5	11	0.1375	0.2375	0.0275
[65,70[	67.5	9	0.1125	0.35	0.0225
[70,75[	72.5	11	0.1375	0.4875	0.0275
[75,80[	77.5	18	0.225	0.7125	0.045
[80,85[	82.5	14	0.175	0.8875	0.035
[85,90[	87.5	8	0.1	0.9875	0.02
[90,95]	92.5	1	0.0125	1	0.0025