Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[70,80]	75	1	0.006173	0.006173	0.001587
]80,90]	85	4	0.024691	0.030864	0.006349
]90,100]	95	6	0.037037	0.067901	0.009524
]100,110]	105	14	0.08642	0.154321	0.022222
]110,120]	115	14	0.08642	0.240741	0.022222
]120,130]	125	13	0.080247	0.320988	0.020635
]130,140]	135	7	0.04321	0.364198	0.011111
]140,150]	145	3	0.018519	0.382716	0.004762
]150,160]	155	1	0.006173	0.388889	0.001587