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

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 the variance of new numbers is______________?

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

3. 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...

4. 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...

5. The Geometric Mean of -2, 4, 03, 6, 0 will be______________?

   A. -3 B. 0 C. 3 D. Cannot be Computed E. None of these...

6. If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be______________?

   A. 8 B. 10 C. 6 D. 12...

7. Which of the following is not based on all the observations ?

   A. Arithmetic Mean B. Geometric Mean C. Harmonic Mean D. Weighted Mean E. Mode...

8. Which of the following is not based on all the observations ?

   A. Arithmetic Mean B. Geometric Mean C. Harmonic Mean D. Weighted Mean E. Mode...

9. Which one of the following measurement does not divide a set of observations into equal parts ?

   A. Quartiles B. Standard Deviations C. Percentiles D. Deciles E. Median...

10. ______________is based on all observations of data?

    A. Median B. Mode C. Mean D. None of these...