Math term explanation please?

Question

In terms of graphing or relationship between 2 variables, what does it mean when the question asks:

" Comment on whether your experiment was biased"

PS: I am doing an experiment upon hours of playtime vs hours of study which i have chosen a sample population of 50.

Answer 1

It could mean two things:

A. Look at the curve and see if it's weird.

B. Think about the experiment and judge whether what can apparently be inferred from the numbers really can.

To be honest, I've forgotten the technical definition of "biased sample"; look that up and you should have a good clue.

Answer 2

Did you want a specific result