Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[50,100[	75	2	0.016667	0.016667	0.000333
[100,150[	125	13	0.108333	0.125	0.002167
[150,200[	175	24	0.2	0.325	0.004
[200,250[	225	18	0.15	0.475	0.003
[250,300[	275	18	0.15	0.625	0.003
[300,350[	325	28	0.233333	0.858333	0.004667
[350,400]	375	17	0.141667	1	0.002833