Income (in 1960 dollars/person) for European countries and the percent of the labor force (in %) that works in agriculture in 1960 are in the table below (OECD economic development, 2013). ne X, percent of labor in agriculture (in %) Y, income (in 1960 dollars/person) 18 1049 15 1242 4 1105 6 1005 25 839 11 1361 42 290 27 504 79 177 11 810 14 1644 20 977 15 1035 44 238 23 681 line a) State the random variables. of Select an answer of Select an answer rv X Select an answer Select an answer rv Y-the mean percent of labor in agriculture the mean income b) Make a all European countries a randomly selected European country Select an the income the percent of labor in agriculture (optional). Why do we wish to sketch a scatterplot? c) Find the equation of the best-fitting line (the least squares regression equation). Round values to 2 decimal places. Include the restricted domain. b) Make a scatterplot of X versus Y in StatCrunch (optional). Why do we wish to sketch a scatterplot? Select an answer Select an answer There is no reason to sketch a scatterplot. To verify that a linear model is appropriate and to look for outliers. surowegression equation). s Round values to 2 decimal places. Include the restricted domain. equation: ?- + restricted domain: %