Liz's math test included a survey question asking how many hours students spent studying for the test. The scatter plot and trend line below show the relationship between how many hours students spent studying and their score on the test. The line fitted to model the data has a slope of 15. So the line that they're talking about is right here. So this is the scatter plot. This shows that some student who spent some time between half an hour and an hour studying got a little bit less than a 45 on the test. The student here who got a little bit higher than a 60 spent a little under two hours studying.