In a binomial distribution, n = 20 and p = 3/5, then variance of this distribution ______________?

Related Mcqs:

1. 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

2. 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

3. If a Binomial experiment is repeated ‘N’ times then binomial frequency distribution is. _______________?

   A. N.{nx}px qn-x
   B. N p q
   C. N.{n/x}px qn-x
   D. N.{n/x}p qn-x

4. Variance of binomial distribution is always:______________?

   A. Less than mean
   B. Greater than mean
   C. Equal to mean
   D. Less than equal to mean

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

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

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

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

7. What is the variance of binomial distribution __________________?

   A. n p
   B. np (1 – p)
   C. np/q
   D. nq/p

8. The variance of binomial distribution is always:________________?

   A. Less than mean
   B. Equal to mean
   C. Greater than mean
   D. Equal to standard deviation
   E. None of these

9. A random variable X has binomial distribution with n = 10 and p = 0.3 then variance of X is:_____________________?

   A. 10
   B. 12
   C. 2.1
   D. 21
   E. None

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

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