γxy is always equal to_____________?

Related Mcqs:

1. First moment about origin is always equal to _______________?

   A. A.M.
   B. variance
   C. Zero
   D. None of these

2. Second moment about mean is always equal to _____________?

   A. S.D.
   B. C.V.
   C. Variance
   D. Square

3. First movement about mean is always equal to ___________?

   A. S.D.
   B. 1
   C. Zero
   D. None of these

4. __________ deviation taken from A.M. is always equal to zero?

   A. Mean
   B. Sum
   C. Average
   D. 2.D.

5. Least square regression line always passes through ____________________?

   A. (x,y)
   B. (X,Y)
   C. (X,Z)
   D. x/y

6. The two regression co-efficient always have the __________ sign?

   A. Different
   B. Same
   C. None of these
   D. +ve

7. A measure of dispersion is always ________________?

   A. Zero
   B. Positive
   C. Negative
   D. Infinity

8. The Coefficient of Skewness is always zero for ____________ distribution?

   A. Symmetrical
   B. Skewed
   C. All of above
   D. None of these

9. In special rule of addition of probability, the events are Always:_______________?

   A. Independent events
   B. Mutually Exclusive events
   C. Bayesian
   D. Empirical

10. Standard deviation is always calculated from _____________?

    A. Mean
    B. Median
    C. Mode
    D. G.M.