Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[100,200[	150	3	0.027778	0.027778	0.000278
[200,300[	250	6	0.055556	0.083333	0.000556
[300,400[	350	13	0.12037	0.203704	0.001204
[400,500[	450	21	0.194444	0.398148	0.001944
[500,600[	550	40	0.37037	0.768519	0.003704
[600,700[	650	21	0.194444	0.962963	0.001944
[700,800]	750	4	0.037037	1	0.00037