the least squares regression equation is y^=654.6x+16.593 where y is the median income and x is the percentage of 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 0.71530. Complete parts​ (a) through​ (d). ​(a) Predict the median income of a region in which 2525​% of adults 25 years and older have at least a​ bachelor's degree. (b) In a particular​ region, 29.529.5 percent of adults 25 years and older have at least a​ bachelor's degree. The median income in this region is ​$39 comma 39839,398. Is this income higher than what you would​ expect? Why? ​(c) Interpret the slope. Select the correct choice below and fill in the answer box to complete your choice. ​(Type an integer or decimal. Do not​ round.) (d) Explain why it does not make sense to interpret the​ y-intercept. Choose the correct answer below.