Question: The above scatterplot shows data recorded from the Kentucky Derby horse races. On the x-axis is the year in which the race took place. On

The above scatterplot shows data recorded from the Kentucky Derby horse races.

On the x-axis is the year in which the race took place.

On the y-axis is the overall speed of the winning horse recorded in miles per hour.

The regression output is:

y = -14.485 + 0.0259 x sample size: 135 r = 0.8255 r-sq = 0.6814

What is the slope of the regression line?

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