Which of the following statements are true? Select the correct option.
(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 where and n = number of paired observations.
(4) Bxy is called regression coefficient of X variable on Y variable.
(5) If bxy is 0.4 and byx is 1.6, coefficient of determination would be 0.8.
A. 1, 2 and 3
B. 1, 3 and 4
C. 3, 4 and 5
D. 2, 3 and 5
Answer: Option B
This Question Belongs to Commerce >> Business Statistics And Research Methods
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A. The central limit theorem
B. The law of statistical regularly
C. The law of inertia of large numbers
D. None of the above
The difference between sample statistic and its corresponding population parameter is
A. Sampling error
B. Measurement error
C. Coverage error
D. Non-response error
A. Both (A) and (R) are true
B. (A) is true, but (R) is false
C. (A) is false, but (R) is true
D. Both (A) and (R) are false
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