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	16	0.133333	0.15	0.002667
[150,200[	175	12	0.1	0.25	0.002
[200,250[	225	15	0.125	0.375	0.0025
[250,300[	275	34	0.283333	0.658333	0.005667
[300,350[	325	37	0.308333	0.966667	0.006167
[350,400]	375	4	0.033333	1	0.000667