The following are costs of advertising (in thousands of dollars) and the numbers...

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The following are costs of advertising (in thousands of dollars) and the numbers of products sold (in thousands).

The equation of the regression line is  .

Determine the R-Squared value for this data, using your scientific calculator or MS Excel.

R² =0.2353

0%

R² =0.5009

100%

R² =0.7077

0%

R² =-0.0707

0%

R² = -0.2767

0%

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