Q61
Which of the following statements are true? 1. The coefficient of rank correlation has the same limits as the Karl Pearson's coefficient of correlation. 2. The coefficient of correlation is independent of the change of origin but not of scale. 3. The covariance between X and Y is defined as xy n where, x = ( X - X ),y = ( Y - Y ) and n = no. of paired observations. 4. b_xy is called regression coefficient of X variable on Y variable. 5. If b_xy is 0.4 and b_yx is 1.6, coefficient of determination would be 0.8. Select the correct answer:
Which of the following statements are true?
1. The coefficient of rank correlation has the same limits as the Karl Pearson's coefficient of correlation.
2. The coefficient of correlation is independent of the change of origin but not of scale.
3. The covariance between and is defined as where, and no. of paired observations.
4. is called regression coefficient of variable on variable.
5. If is 0.4 and is 1.6, coefficient of determination would be 0.8.
Select the correct answer:
1. The coefficient of rank correlation has the same limits as the Karl Pearson's coefficient of correlation.
2. The coefficient of correlation is independent of the change of origin but not of scale.
3. The covariance between and is defined as where, and no. of paired observations.
4. is called regression coefficient of variable on variable.
5. If is 0.4 and is 1.6, coefficient of determination would be 0.8.
Select the correct answer:
A.
1, 2 and 3
B.
1, 3 and 4
AnswerC.
3, 4 and 5
D.
2, 3 and 5
Answer: Option B
Solution
Answer: Option B
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