Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[200,250[	225	20	0.055556	0.055556	0.001111
[250,300[	275	168	0.466667	0.522222	0.009333
[300,350[	325	112	0.311111	0.833333	0.006222
[350,400[	375	37	0.102778	0.936111	0.002056
[400,450[	425	20	0.055556	0.991667	0.001111
[450,500]	475	3	0.008333	1	0.000167