Correlation is _____________ of regression coefficients?

Related Mcqs:

1. When r is zero than both regression coefficients are________?

   A. 0
   B. 1
   C. 2
   D. Infinity

   Submitted by: Nimra Shaheen

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

   A. -99
   B. .99
   C. 0
   D. √3

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

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

4. Correlation coefficient lies between__________________?

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

5. In correlation, both variables are______________?

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

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

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

7. Correlation coefficient is ___________ with respect to x and y?

   A. +vely
   B. Non-normal
   C. Symmetrical
   D. Skewed

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. Correlation coefficient is__________?

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

   Submitted by: Nimra Shaheen

10. If x = 3 then value of regression co-efficient of X or Y is ________________?

    A. (3)
    B. (0)
    C. -3
    D. -4