Reading 11: Correlation and Regression - LOS f, (Part 2): simple, black, white, style

mayanfang1

Q21. What does the R² of a simple regression of two variables measure and what calculation is used to equate the correlation coefficient to the coefficient of determination?

         R2 measures:                                        Correlation coefficient

A) percent of variability of the independent variable that

is explained by the variability of the dependent variable         R2 = r2

B) percent of variability of the independent variable that

is explained by the variability of the dependent variable         R2 = r × 2

C) percent of variability of the dependent variable that

is explained by the variability of the independent variable        R2 = r2

Q22. The R² of a simple regression of two factors, A and B, measures the:

A)   impact on B of a one-unit change in A.

B)   percent of variability of one factor explained by the variability of the second factor.

C)   statistical significance of the coefficient in the regression equation.

danforth

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elea0930

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superchin

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ken_wangyang

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rosemarie

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annyyu

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xiamity

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沙胖胖

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tomathome

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