Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[8,9[	8.5	1	0.010101	0.010101	0.010101
[9,10[	9.5	1	0.010101	0.020202	0.010101
[10,11[	10.5	3	0.030303	0.050505	0.030303
[11,12[	11.5	8	0.080808	0.131313	0.080808
[12,13[	12.5	10	0.10101	0.232323	0.10101
[13,14[	13.5	14	0.141414	0.373737	0.141414
[14,15[	14.5	19	0.191919	0.565657	0.191919
[15,16[	15.5	21	0.212121	0.777778	0.212121
[16,17[	16.5	9	0.090909	0.868687	0.090909
[17,18[	17.5	8	0.080808	0.949495	0.080808
[18,19]	18.5	5	0.050505	1	0.050505