Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[80,100[	90	2	0.02381	0.02381	0.00119
[100,120[	110	22	0.261905	0.285714	0.013095
[120,140[	130	18	0.214286	0.5	0.010714
[140,160[	150	19	0.22619	0.72619	0.01131
[160,180[	170	11	0.130952	0.857143	0.006548
[180,200[	190	9	0.107143	0.964286	0.005357
[200,220]	210	3	0.035714	1	0.001786