Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[6.8,7[	6.9	2	0.027778	0.027778	0.138889
[7,7.2[	7.1	7	0.097222	0.125	0.486111
[7.2,7.4[	7.3	7	0.097222	0.222222	0.486111
[7.4,7.6[	7.5	9	0.125	0.347222	0.625
[7.6,7.8[	7.7	4	0.055556	0.402778	0.277778
[7.8,8[	7.9	4	0.055556	0.458333	0.277778
[8,8.2[	8.1	5	0.069444	0.527778	0.347222
[8.2,8.4[	8.3	2	0.027778	0.555556	0.138889
[8.4,8.6[	8.5	5	0.069444	0.625	0.347222
[8.6,8.8[	8.7	4	0.055556	0.680556	0.277778
[8.8,9[	8.9	21	0.291667	0.972222	1.458333
[9,9.2]	9.1	2	0.027778	1	0.138889