Variance remains unchanged by change of_____________?

Related Mcqs:

1. Variance remains unchanged by change of________________?

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

2. 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

3. 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

4. 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

5. 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

6. 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

7. The measure of dispersion is changed by a change of_____________?

   A. Origin
   B. Scale
   C. Algebraic Signs
   D. None

8. In binomial distribution the probability of success remains __________ from trial to trial?

   A. Constant
   B. Varies
   C. Four
   D. Probability

9. Statistics is the backbone of_____________?

   A. Economics
   B. Mathematics
   C. Research
   D. Computer

10. Village Patwari collecting the data about cotton crops is the example of_____________?

    A. variable
    B. Constant
    C. Primary data
    D. Secondary data