Second moment about mean 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. The second moment about mean is _____?

   A. Variance
   B. Mean
   C. S.D.
   D. Mode

3. If third moment about mean is equal to zero, then distribution is ______________?

   A. Negatively skewed
   B. Symmetrical
   C. positively skewed
   D. None of these

4. Second moment about mean is_______________?

   A. Standard Deviation
   B. Variance
   C. Coefficient of Variation
   D. None of these

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

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

6. If the third moment about mean is zero then distribution is_______________?

   A. Mesokurtic
   B. Positively Skewed
   C. Symmetrical
   D. Negatively Skewed

7. Mean deviation is always ________________?

   A. Equal to S.D.
   B. More than S.D.
   C. Less than S.D.
   D. Negative

8. The standard deviation is always _________ than mean deviation?

   A. Greater
   B. Less
   C. Equal
   D. None

9. The mean of a binomial distribution is always:____________________?

   A. Equal to variance
   B. Less than variance
   C. Greater than varince
   D. None of these

10. Combine mean calculated by different given mean is ________?

    A. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu
    B. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4
    C. n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu
    D. ∑n1x/x1