Correlation coefficient is ___________ with respect to x and y?

Related Mcqs:

1. Correlation coefficient lies between__________________?

   A. 0 ≤ r ≤ 1
   B. 0 ≤ r ≤ -1
   C. -1 ≤ r ≤ 1
   D. 1 ≤ r ≤ 0

2. Which of the following can never be taken as coefficient of correlation is _____________?

   A. -99
   B. .99
   C. 0
   D. √3

3. Correlation coefficient is _________ of origin and unit of measurement?

   A. Origin
   B. Dependence
   C. Independence
   D. None

4. If x and y are Independent to each other the coefficient of correlation is _____________?

   A. -1
   B. +1
   C. .6
   D. 0

5. Correlation coefficient is__________?

   A. Absolute measure
   B. Relative measure 
   C. Both a and b
   D. None of the above

   Submitted by: Nimra Shaheen

6. In correlation, both variables are______________?

   A. Random
   B. Fixed
   C. Non-random
   D. Experimental

7. Correlation is _____________ of regression coefficients?

   A. A.M.
   B. G.M.
   C. M.D.
   D. H.M.

8. The Spearman Rank-Correlation test requires that the______________?

   A. Data must be measured on the same scale
   B. Data should be of ordinal scale at least
   C. Data must be distribution at least approximately as a t-distribution
   D. Data must be from two independent samples

9. In perfect association the value of coefficient of association is ______________?

   A. (0)
   B. +1
   C. -1
   D. non of these

10. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as______________E[∏(θ)ιX1,X2,…..,Xn] is called?

    A. Posterior Bay’s estimator
    B. Minimax estimator
    C. Bay’s estimator
    D. Sufficient estimator