The correct variance is define as the __________________?

Related Mcqs:

1. suppose for 40 observation, the variance is 50. If all the observation are increased by 20, the variance of these increased observation will be_________?

   A. 50 B. 70 C. 50/20 D. 50-20=30...

2. The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is_____________?

   A. 20 B. 5 C. 2.5 D. 0...

3. The variance of 5 numbers is 10. If each number is divided by 2, then the variance of new numbers is______________?

   A. 20 B. 5 C. 2.5 D. 5.5 E. 0...

4. Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________?

   A. 50 B. 70 C. 50/20 D. 50-20 = 30 E. 50...

5. Sample variance S2 is unbiased estimator of population variance 26 because ________________?

   A. E(S2) = s2 B. E(u) = X C. E(P) = P D. Ux = u...

6. What is the variance of binomial distribution __________________?

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

7. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as_________________E[∏(θ)ιX1,X2,…..,Xn] is called?

   A. Posterior Bay’s estimator B. Minimax estimator C. Bay’s estimator D. Sufficient estimator...

8. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as______________E[∏(θ)ιX1,X2,…..,Xn] is called?

   A. Posterior Bay’s estimator B. Minimax estimator C. Bay’s estimator D. Sufficient estimator...

9. Variance remains unchanged by change of_____________?

   A. Origin B. Scale C. Both D. None of these...

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

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