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Question 61) Which of the following statements is true about r2?

Question 61) Which of the following statements is true about r2?

Question

61) Which of the following statements is true about r2?

A) It is also called the coefficient of correlation.

B) It is also called the coefficient of determination.

C) It represents the percent of variation in X that is explained by Y.

D) It represents the percent of variation in the error that is explained by Y.

E) It ranges in value from -1 to + 1.

62) The coefficient of determination resulting from a particular regression analysis was 0.85. What was the slope of the regression line?

A) 0.85

B) -0.85

C) 0.922

D) There is insufficient information to answer the question.

E) None of the above

63) The diagram below illustrates data with a

A) negative correlation coefficient.

B) zero correlation coefficient.

C) positive correlation coefficient.

D) correlation coefficient equal to +1.

E) None of the above

64) The correlation coefficient resulting from a particular regression analysis was 0.25. What was the coefficient of determination?

A) 0.5

B) -0.5

C) 0.0625

D) There is insufficient information to answer the question.

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