Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[220,240[	230	3	0.009119	0.009119	0.000456
[240,260[	250	55	0.167173	0.176292	0.008359
[260,280[	270	47	0.142857	0.319149	0.007143
[280,300[	290	68	0.206687	0.525836	0.010334
[300,320[	310	41	0.12462	0.650456	0.006231
[320,340[	330	42	0.12766	0.778116	0.006383
[340,360[	350	31	0.094225	0.87234	0.004711
[360,380[	370	11	0.033435	0.905775	0.001672
[380,400[	390	8	0.024316	0.930091	0.001216
[400,420[	410	10	0.030395	0.960486	0.00152
[420,440[	430	5	0.015198	0.975684	0.00076
[440,460[	450	5	0.015198	0.990881	0.00076
[460,480]	470	3	0.009119	1	0.000456