Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[250,300[	275	6	0.082192	0.082192	0.001644
[300,350[	325	7	0.09589	0.178082	0.001918
[350,400[	375	14	0.191781	0.369863	0.003836
[400,450[	425	18	0.246575	0.616438	0.004932
[450,500[	475	10	0.136986	0.753425	0.00274
[500,550[	525	6	0.082192	0.835616	0.001644
[550,600[	575	0	0	0.835616	0
[600,650[	625	5	0.068493	0.90411	0.00137
[650,700[	675	6	0.082192	0.986301	0.001644
[700,750]	725	1	0.013699	1	0.000274