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=3.6667​, sx=2.3381​, y=4.5833​, sy=1.6376​, and r=−0.9315​, determine the​ least-squares regression line. ​(c) Graph the​ least-squares regression line on the scatter diagram drawn in part​ (a).   x 1 1 3 5 6 6   y 5.4 6.8 5.8 3.6 2.8 3.1

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