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Anna wanted to investigate if exercise impacts her mental focus. She recorded exercise hours and focus levels (\(y\), out of 100) over 7 days:
Exercise Hours 1 2.5 2 3 1.5 2 2.5
Focus Level 89 82 71 86 81 83 73
She plotted the data as follows:
Is it reasonable to fit a line of best fit to this data?
Choose one answer: