The mean and the variance are equal in________________?

Related Mcqs:

1. If mean and variance are not equal then distribution ________________?

   A. None
   B. Symmetrical
   C. Skewed
   D. Equal

2. In a binomial distribution mean and variance is _________________?

   A. Variance > mean
   B. Mean < variance
   C. Variance ≠ mean
   D. None of these

3. if in a binomial probability distribution mean and variance are 6 and 2.4 respectively, then the parameters of this distribution are:____________________?

   A. n = 10, p = 6/10
   B. n = 50, p = 6/50
   C. n = 10, p = 3/5
   D. n = 10, p = 2/5

4. The mean and variance of binomial distribution are ______________?

   A. Unequal
   B. Equal
   C. Symmetrical
   D. None

5. In binomial distribution with ________ trials mean is np and variance is npq?

   A. Dependent
   B. Independent
   C. Linear
   D. Equal

6. In a binomial distribution mean and variance is ________________?

   A. Variance > mean
   B. Mean < variance
   C. Variance ≠ mean
   D. None of these

7. If mean of the binomial probability distribution is 4.8, then variance of this distribution is :_______________?

   A. -2.3
   B. 5.3
   C. -4.8
   D. 2.3

8. Random samples of size 17 are from a population that has 200 elements, a mean of 36, and a standard deviation of 8. which of the following best describes the from of the sampling distribution of the sample mean for this situation ?

   A. Approximately normal because the sample size is small relative to the population size
   B. Approximately normal because of the central limit theorem
   C. Exactly
   D. None of these alternatives is correct

9. 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

10. Mean Deviation, Variance and Standard Deviation of the values 4, 4, 4, 4, 4, 4 is_________________?

    A. 4
    B. 8
    C. 2
    D. 12
    E. 0