Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[160,180[	170	9	0.107143	0.107143	0.005357
[180,200[	190	10	0.119048	0.22619	0.005952
[200,220[	210	6	0.071429	0.297619	0.003571
[220,240[	230	5	0.059524	0.357143	0.002976
[240,260[	250	16	0.190476	0.547619	0.009524
[260,280[	270	11	0.130952	0.678571	0.006548
[280,300[	290	10	0.119048	0.797619	0.005952
[300,320[	310	3	0.035714	0.833333	0.001786
[320,340[	330	1	0.011905	0.845238	0.000595
[340,360[	350	1	0.011905	0.857143	0.000595
[360,380[	370	5	0.059524	0.916667	0.002976
[380,400[	390	3	0.035714	0.952381	0.001786
[400,420[	410	3	0.035714	0.988095	0.001786
[420,440]	430	1	0.011905	1	0.000595