In each of the following problems, construct a scatter plot for the data. Without doing any calculations for b = 0 and b = 1, add a straight line to each graph that you believe would be close to the...

In each of the following problems, construct a scatter plot for the data. Without doing any calculations for b = 0 and b = 1, add a straight line to each graph that you believe would be close to the estimated regression line. That is, try to draw a line through the middle of the points, so that there are approximately the same number of points above and below the line.