A score is 20. So, it's 45.
It is 8
a score is twenty:20
A score is equal to 20.
20
Score = 20
+67
20
he
Revise more.
20
2+2=5
The answer depends on what the experiment is about. For example, if you believe (or want to test) that pupils' scores in English tests depend on their scores in maths tests, then the independent variable is the maths score. But if you believe that the English scores influence their maths scores then the independent variable is the maths score.