Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[7.5,8[	7.75	5	0.02	0.02	0.04
[8,8.5[	8.25	30	0.12	0.14	0.24
[8.5,9[	8.75	34	0.136	0.276	0.272
[9,9.5[	9.25	13	0.052	0.328	0.104
[9.5,10[	9.75	2	0.008	0.336	0.016
[10,10.5[	10.25	3	0.012	0.348	0.024
[10.5,11[	10.75	7	0.028	0.376	0.056
[11,11.5[	11.25	42	0.168	0.544	0.336
[11.5,12[	11.75	26	0.104	0.648	0.208
[12,12.5[	12.25	40	0.16	0.808	0.32
[12.5,13[	12.75	44	0.176	0.984	0.352
[13,13.5]	13.25	4	0.016	1	0.032