A data set is given below 

(a) Draw a scatter diagram Comment on the type of relation that appears to exist between x and y. 

(b) Given that x over bar equals 3.5000, s Subscript x equals 2.5100, y over bar equals 4.3500, s Subscript y equals 1.5579, and r equals negative 0.9437, determine the least-squares regression line.

(c) Graph the least squares regression line on the scatter diagram drawn in part (a) 

x                         y

0                         5.8

1                         6.3 

4                         4.8

4                         3.9

6                         2.5 

6                         2.8