Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[180,200[	190	3	0.041667	0.041667	0.002083
[200,220[	210	3	0.041667	0.083333	0.002083
[220,240[	230	4	0.055556	0.138889	0.002778
[240,260[	250	0	0	0.138889	0
[260,280[	270	2	0.027778	0.166667	0.001389
[280,300[	290	1	0.013889	0.180556	0.000694
[300,320[	310	3	0.041667	0.222222	0.002083
[320,340[	330	10	0.138889	0.361111	0.006944
[340,360[	350	11	0.152778	0.513889	0.007639
[360,380[	370	6	0.083333	0.597222	0.004167
[380,400[	390	8	0.111111	0.708333	0.005556
[400,420[	410	1	0.013889	0.722222	0.000694
[420,440[	430	8	0.111111	0.833333	0.005556
[440,460[	450	6	0.083333	0.916667	0.004167
[460,480[	470	4	0.055556	0.972222	0.002778
[480,500[	490	1	0.013889	0.986111	0.000694
[500,520[	510	0	0	0.986111	0
[520,540[	530	0	0	0.986111	0
[540,560]	550	1	0.013889	1	0.000694