\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Scenario: Anna investigated if exercise impacts her mental focus, recording daily exercise hours and a focus score (out of 100).
Exercise Hours 1 2.5 2 3 1.5 2 2.5
Focus Level 89 82 71 86 81 83 73
Is it reasonable to fit a line of best fit to this data?