Types of variable
Dependent and independent variable
Imagine that a tutor asks 100 students to complete a math’s test the tutor wants to know why some students perform better than others. Whilst the tutor does not know the answer to this she thinks that it might be because of two reasons(1) some students spent more time revising for their test: and (2) somes students are naturally more intelligent than other. As such the tutor decides to investigate the effect of revision time and intelligent