Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,20[	10	26	0.089965	0.089965	0.004498
[20,40[	30	79	0.273356	0.363322	0.013668
[40,60[	50	75	0.259516	0.622837	0.012976
[60,80[	70	60	0.207612	0.83045	0.010381
[80,100[	90	25	0.086505	0.916955	0.004325
[100,120[	110	13	0.044983	0.961938	0.002249
[120,140[	130	3	0.010381	0.972318	0.000519
[140,160[	150	5	0.017301	0.989619	0.000865
[160,180[	170	1	0.00346	0.99308	0.000173
[180,200[	190	0	0	0.99308	0
[200,220[	210	0	0	0.99308	0
[220,240[	230	0	0	0.99308	0
[240,260]	250	2	0.00692	1	0.000346