Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[140,160[	150	1	0.020408	0.020408	0.00102
[160,180[	170	5	0.102041	0.122449	0.005102
[180,200[	190	10	0.204082	0.326531	0.010204
[200,220[	210	6	0.122449	0.44898	0.006122
[220,240[	230	11	0.22449	0.673469	0.011224
[240,260[	250	10	0.204082	0.877551	0.010204
[260,280[	270	4	0.081633	0.959184	0.004082
[280,300]	290	2	0.040816	1	0.002041