Question

The scatter plot shows the study times and test scores for a number of students. How long did the person who scored 81 study?

Answer 1

well the answer to this depends on what your scatter plot looks like. There might be a point in line with a score of 81, it there is ,then just give it's corresponding value on the other axis. If not then you could estimate. And if you've done line fitting to scatter plots then you need to draw a line of best fit over all your points and then read the answer off that line, i.e. see what time corresponds to a mark of 81 on the line.

Answer 2

but in general if you've learned about line of best fit you should use it to answer

Answer 3

so what is the answer