2. The least-squares regression equation is p - 565.2x + 18927 where y is the median income and x is the percentage of adults 25 years and older with at least a bachelor's degree in the region. The scatter diagram indicates a linear relation between the two variables with a correlation coefficient of 0.761 55000 Median Income 20000- 25 30 a. Interpret the slope: For every percent increase in adults having at least a bachelor's degree, on average. b. Interpret the y-intercept