Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[55,60[	57.5	4	0.057143	0.057143	0.011429
[60,65[	62.5	20	0.285714	0.342857	0.057143
[65,70[	67.5	11	0.157143	0.5	0.031429
[70,75[	72.5	15	0.214286	0.714286	0.042857
[75,80[	77.5	3	0.042857	0.757143	0.008571
[80,85[	82.5	5	0.071429	0.828571	0.014286
[85,90[	87.5	10	0.142857	0.971429	0.028571
[90,95]	92.5	2	0.028571	1	0.005714