A. 20
B. 5
C. 2.5
D. 0
Related Mcqs:
- 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 - The mean of 10 numbers is 9, then sum of these numbers will be__________________?
A. 9
B. 0.9
C. 70
D 90 - 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 - 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 - 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 - If the standard deviation of a population is 9, the population variance is_____________?
A. 9
B. 3
C. 21
D. 81 - Which of the following describe the middle part of a group of numbers ?
A. Measure of Variability
B. Measure of Central Tendency
C. Measure of Association
D. Measure of Shape - Two digit random numbers are ________________?
A. 2
B. 10
C. 99
D. 100 - _________ are the numbers obtained by some random process?
A. Two- digit number take
B. Random table
C. Pack
D. Non of these - The index numbers are used to measure seasonal and cyclical variations in __________?
A. Commodities
B. Time Series
C. Whole sale
D. Realtives
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