Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[79,80[	79.5	14	0.194444	0.194444	0.194444
[80,81[	80.5	13	0.180556	0.375	0.180556
[81,82[	81.5	6	0.083333	0.458333	0.083333
[82,83[	82.5	12	0.166667	0.625	0.166667
[83,84[	83.5	12	0.166667	0.791667	0.166667
[84,85[	84.5	11	0.152778	0.944444	0.152778
[85,86]	85.5	4	0.055556	1	0.055556