If byx = 0.8 and bxy = 0.45, what is the correlation coefficient r?
Correct answer B. 0.60
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Correlation and Regression MCQs
Page 2 of Correlation and Regression multiple-choice questions with answers. Tap an option to check yourself.
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Pearson’s correlation coefficient is unaffected by which of the following?
Correct answer A. Change of origin and scale
If r = 0.7, what is the coefficient of non-determination?
Correct answer B. 0.51
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If the correlation coefficient between two variables is 0.8, what is the coefficient of determination?
Correct answer B. 0.64
Between which limits does Karl Pearson’s coefficient of correlation always lie?
Correct answer B. −1 and +1
What is the range of a partial correlation coefficient?
Correct answer C. -1 to 1
In regression, how do the signs of the regression coefficients compare with the sign of r?
Correct answer A. Same
If bxy is greater than 1, what must byx be?
Correct answer D. Less than 1
In statistics, regression analysis is regarded as what kind of measure?
Correct answer A. An absolute measure
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What kind of measure is the correlation coefficient?
Correct answer B. Relative measure
If the correlation coefficient r is zero, what are both regression coefficients?
Correct answer D. 0