3. The median price of a home in thousands of dollars in the U.S. over the decades from 1970 to 2010 is listed in the table below. (Data taken from fred.stlouisfed.org) Use the tvalues given in the table for your calculations, not the year. \"In (a) Write out the normal equations of the least squares regression line for this data. (b) Solve the system for m and b and write the equation of the regression line for this data. (c) On the grid provided on the last page, graph both the data and the regression line neatly and accurately. Use a straightedge to graph the line. (d) Based on this regression line. what would you expect the price of the median home in the U.S. to be in 2020? (e) The median price of a home in the U.S. in 2020 was $322,600. How far off was the prediction based on the regression line