The regression calculator shows the relationship
between the hours Devin spent playing a video game,
x, and the levels he achieved, y.
Which number of hours can be used to make an
extrapolation of the level he could achieve?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.