Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[100,120[	110	3	0.025	0.025	0.00125
[120,140[	130	4	0.033333	0.058333	0.001667
[140,160[	150	10	0.083333	0.141667	0.004167
[160,180[	170	17	0.141667	0.283333	0.007083
[180,200[	190	25	0.208333	0.491667	0.010417
[200,220[	210	20	0.166667	0.658333	0.008333
[220,240[	230	34	0.283333	0.941667	0.014167
[240,260]	250	7	0.058333	1	0.002917