Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[80,100[	90	4	0.083333	0.083333	0.004167
[100,120[	110	10	0.208333	0.291667	0.010417
[120,140[	130	4	0.083333	0.375	0.004167
[140,160[	150	7	0.145833	0.520833	0.007292
[160,180[	170	2	0.041667	0.5625	0.002083
[180,200[	190	6	0.125	0.6875	0.00625
[200,220[	210	10	0.208333	0.895833	0.010417
[220,240[	230	3	0.0625	0.958333	0.003125
[240,260[	250	2	0.041667	1	0.002083