Question: A class surveyed students about how many hours they studied for a science test and their resulting test scores. The data was plotted on a scatter plot, and students informally drew lines of best fit. Student A drew a line that went through the first and last points of the data. Student B drew a line where most points were evenly scattered above and below the line. Which student likely drew a better line of best fit and why?
A) Student A, because the line touches the extreme values and captures the full range.
B) Student B, because the line balances the data and minimizes the overall distance from the points.
C) Student A, because using the first and last points guarantees accuracy.
D) Both students are correct because any line on a scatter plot is a line of best fit.
Correct answer: B
Grade: 8 | Topic: Statistics and Probability | Difficulty: Medium | Standard: 8. SP. A. 2