Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[28,28.5[	28.25	1	0.013889	0.013889	0.027778
[28.5,29[	28.75	8	0.111111	0.125	0.222222
[29,29.5[	29.25	14	0.194444	0.319444	0.388889
[29.5,30[	29.75	11	0.152778	0.472222	0.305556
[30,30.5[	30.25	12	0.166667	0.638889	0.333333
[30.5,31[	30.75	11	0.152778	0.791667	0.305556
[31,31.5[	31.25	6	0.083333	0.875	0.166667
[31.5,32[	31.75	3	0.041667	0.916667	0.083333
[32,32.5[	32.25	5	0.069444	0.986111	0.138889
[32.5,33]	32.75	1	0.013889	1	0.027778