Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[50,60[	55	5	0.052083	0.052083	0.005208
[60,70[	65	11	0.114583	0.166667	0.011458
[70,80[	75	13	0.135417	0.302083	0.013542
[80,90[	85	14	0.145833	0.447917	0.014583
[90,100[	95	13	0.135417	0.583333	0.013542
[100,110[	105	5	0.052083	0.635417	0.005208
[110,120[	115	7	0.072917	0.708333	0.007292
[120,130[	125	15	0.15625	0.864583	0.015625
[130,140[	135	9	0.09375	0.958333	0.009375
[140,150[	145	2	0.020833	0.979167	0.002083
[150,160]	155	2	0.020833	1	0.002083