Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[70,80[	75	1	0.0125	0.0125	0.00125
[80,90[	85	10	0.125	0.1375	0.0125
[90,100[	95	15	0.1875	0.325	0.01875
[100,110[	105	27	0.3375	0.6625	0.03375
[110,120[	115	18	0.225	0.8875	0.0225
[120,130[	125	8	0.1	0.9875	0.01
[130,140[	135	1	0.0125	1	0.00125