Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[50,100[	75	13	0.108333	0.108333	0.002167
[100,150[	125	12	0.1	0.208333	0.002
[150,200[	175	16	0.133333	0.341667	0.002667
[200,250[	225	19	0.158333	0.5	0.003167
[250,300[	275	13	0.108333	0.608333	0.002167
[300,350[	325	41	0.341667	0.95	0.006833
[350,400]	375	6	0.05	1	0.001