Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[300,320[	310	79	0.124803	0.124803	0.00624
[320,340[	330	201	0.317536	0.442338	0.015877
[340,360[	350	165	0.260664	0.703002	0.013033
[360,380[	370	123	0.194313	0.897314	0.009716
[380,400]	390	65	0.102686	1	0.005134