Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,5]	2.5	4	0.095238	0.095238	0.019048
]5,10]	7.5	9	0.214286	0.309524	0.042857
]10,15]	12.5	17	0.404762	0.714286	0.080952
]15,20]	17.5	9	0.214286	0.928571	0.042857
]20,25]	22.5	3	0.071429	1	0.014286