(Solution Download) If you play tennis you know that tennis racquets vary

If you play tennis, you know that tennis racquets vary in their physical characteristics. The data in the accompanying table give measures of bending stiffness and twisting stiffness as measured by engineering tests for 12 tennis racquets:

a. If a racquet has bending stiffness, is it also likely to have twisting stiffness? Do the data provide evidence that x and y are positively correlated?
b. Calculate the coefficient of determination r2 and interpret its value.

 

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