Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[60,80[	70	5	0.061728	0.061728	0.003086
[80,100[	90	23	0.283951	0.345679	0.014198
[100,120[	110	12	0.148148	0.493827	0.007407
[120,140[	130	4	0.049383	0.54321	0.002469
[140,160[	150	5	0.061728	0.604938	0.003086
[160,180[	170	3	0.037037	0.641975	0.001852
[180,200[	190	6	0.074074	0.716049	0.003704
[200,220[	210	12	0.148148	0.864198	0.007407
[220,240[	230	2	0.024691	0.888889	0.001235
[240,260[	250	8	0.098765	0.987654	0.004938
[260,280[	270	1	0.012346	1	0.000617