Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[5,10]	7.5	10	0.10101	0.10101	0.020202
]10,15]	12.5	19	0.191919	0.292929	0.038384
]15,20]	17.5	23	0.232323	0.525253	0.046465
]20,25]	22.5	27	0.272727	0.79798	0.054545
]25,30]	27.5	11	0.111111	0.909091	0.022222
]30,35]	32.5	5	0.050505	0.959596	0.010101
]35,40]	37.5	3	0.030303	0.989899	0.006061
]40,45]	42.5	1	0.010101	1	0.00202