explain pandas project code example

Example: project for pandas

0 9.0
1 9.0
2 8.5
3 8.5
4 8.5
5 7.0
6 3.0
7 9.0
8 3.0
9 7.0
10 7.5
11 7.5
12 7.0
13 9.0
14 9.0
...
18610 6.0
18611 5.8
18612 7.8
18613 8.0
18614 9.2
18615 9.2
18616 7.5
18617 8.4
18618 9.1
18619 7.9
18620 7.6
18621 9.0
18622 5.8
18623 10.0
18624 10.0
Name: score, Length: 18625, dtype: float64