Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[11,12[	11.5	1	0.006173	0.006173	0.006173
[12,13[	12.5	1	0.006173	0.012346	0.006173
[13,14[	13.5	1	0.006173	0.018519	0.006173
[14,15[	14.5	0	0	0.018519	0
[15,16[	15.5	1	0.006173	0.024691	0.006173
[16,17[	16.5	0	0	0.024691	0
[17,18[	17.5	2	0.012346	0.037037	0.012346
[18,19[	18.5	5	0.030864	0.067901	0.030864
[19,20[	19.5	5	0.030864	0.098765	0.030864
[20,21[	20.5	17	0.104938	0.203704	0.104938
[21,22[	21.5	14	0.08642	0.290123	0.08642
[22,23[	22.5	16	0.098765	0.388889	0.098765
[23,24[	23.5	25	0.154321	0.54321	0.154321
[24,25[	24.5	19	0.117284	0.660494	0.117284
[25,26[	25.5	22	0.135802	0.796296	0.135802
[26,27[	26.5	10	0.061728	0.858025	0.061728
[27,28]	27.5	23	0.141975	1	0.141975