Which one of the following statements is true ? 1. The slope in a regression equation tells us what we predict y to be if x is equal to 0. 2. The correlation coefficient is not resistant outliers. 3....

Which one of the following statements istrue?

1. The slope in a regression equation tells us what we predict
y to be ifx is equal to 0.

2. The correlation coefficient is not resistant outliers.

3. In the context of correlation and regression, as long as the correlation is strong, it’s okay to infer that the explanatory variable causes the response variable

4. If
r-squared (orr
²) is positive, this means the correlation coefficient (orr) must also be positive.

5. We should use the correlation coefficient and the regression equation only when the relationship between variables is non-linear

Jun 08, 2022

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Which one of the following statements is true ? 1. The slope in a regression equation tells us what we predict y to be if x is equal to 0. 2. The correlation coefficient is not resistant outliers. 3....

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