Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[100,120[	110	1	0.008333	0.008333	0.000417
[120,140[	130	3	0.025	0.033333	0.00125
[140,160[	150	9	0.075	0.108333	0.00375
[160,180[	170	14	0.116667	0.225	0.005833
[180,200[	190	11	0.091667	0.316667	0.004583
[200,220[	210	10	0.083333	0.4	0.004167
[220,240[	230	10	0.083333	0.483333	0.004167
[240,260[	250	14	0.116667	0.6	0.005833
[260,280[	270	28	0.233333	0.833333	0.011667
[280,300]	290	20	0.166667	1	0.008333