Based off of the fitted line, we obtain expected values, given an input. If the input is 0 minutes remaining (meaning a student turns in a test with no time remaining), the expected value of their exam score is 87.
Although I don’t see that answer, with 53 children and 22 having a dog, 18 a cat, and 6 with both, you would think to subtract all three of those numbers with 53 to get the remaining with no dogs or cats, which results to 7
