Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[200,220[	210	7	0.097222	0.097222	0.004861
[220,240[	230	17	0.236111	0.333333	0.011806
[240,260[	250	10	0.138889	0.472222	0.006944
[260,280[	270	23	0.319444	0.791667	0.015972
[280,300[	290	8	0.111111	0.902778	0.005556
[300,320[	310	1	0.013889	0.916667	0.000694
[320,340[	330	1	0.013889	0.930556	0.000694
[340,360[	350	1	0.013889	0.944444	0.000694
[360,380[	370	1	0.013889	0.958333	0.000694
[380,400]	390	3	0.041667	1	0.002083