Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[50,100[	75	4	0.054795	0.054795	0.001096
[100,150[	125	20	0.273973	0.328767	0.005479
[150,200[	175	21	0.287671	0.616438	0.005753
[200,250[	225	15	0.205479	0.821918	0.00411
[250,300[	275	5	0.068493	0.890411	0.00137
[300,350[	325	4	0.054795	0.945205	0.001096
[350,400[	375	2	0.027397	0.972603	0.000548
[400,450]	425	2	0.027397	1	0.000548