Subjects

Biology

Chemistry

Physics

Mathematics

Schools Mean Grade

Years

2002

2003

2002

2003

2002

2003

2002

2003

School X

2.916

3.33

1.4

1.7

2.785

2.253

4.554

4.97

School Y

1.436

1.2

3.5

3.7

2.141

2.090

2.934

3.12