Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[580,590[	585	9	0.125	0.125	0.0125
[590,600[	595	12	0.166667	0.291667	0.016667
[600,610[	605	0	0	0.291667	0
[610,620[	615	12	0.166667	0.458333	0.016667
[620,630[	625	12	0.166667	0.625	0.016667
[630,640[	635	0	0	0.625	0
[640,650[	645	12	0.166667	0.791667	0.016667
[650,660[	655	0	0	0.791667	0
[660,670]	665	15	0.208333	1	0.020833