The grades of a class of 9 students on a midterm report (x) and on the...

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The grades of a class of 9 students on a midterm report (x) and on the final examination (y) are shown below. Use the data to

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x (x-x) (Y-% Y (x-x) (4-Y) (x - x)? 75 80 -401111 5.8889 -242099 16.9012 55 26.7901 73 -24-101 581.3457 - 27. 6543 72 78 -7.1

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