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how to find slope of regression equation. First subtract 8 from both sides to get 4y 6x 10. The line of best fit is described by the equation y bX a where b is the slope of the line and a is the intercept ie the value of Y when X 0.
Imagine you have some points and want to have a line that best fits them like this. We can place the line by eye. A 2417 23769 3775 15206 6 23769 3775 2.
Step 1 - Determine the Summary Statistics from the Graph Step 2 - Calculate the Slope b 1 The slope is b 1 r s y s x.
Where r is the correlation between X and Y and sx and sy are the. Create an ordered pair whose x-value is the mean of the years and whose y-value is the mean of the enrollments. Try to have the line as close as possible to all points and a similar number of points above and below the line. The slope of a least squares regression can be calculated by m r SDySDx.