The second moment about mean is _____?
The second moment about mean is _____?
A. Variance
B. Mean
C. S.D.
D. Mode
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Variance is always calculated from___________?
Variance is always calculated from___________?A. Mean
B. Variance
C. Geometric Mean
D. Median
E. Modewhat is the probability of a type II error when α=0.05 ?
what is the probability of a type II error when α=0.05 ?A. 0.025
B. 0.95
C. 0.05
D. Cannot be determined without more informationThe index number of base period is always:_______________?
The index number of base period is always:_______________?A. 100
B. 200
C. The price of that year
D. None of theseTo perform a Runs test for randomness the data must be_______________?
To perform a Runs test for randomness the data must be_______________?A. Divided into at least two classifications
B. Divided into exactly two classifications
C. Quantitative
D. QualitativeWhich of the following case is true for hyper geometric distribution________________?
Which of the following case is true for hyper geometric distribution________________?A. Probability remains constant for all the trials.
B. Probability changes from trial to trial
C. Successive trial are dependent
D. Both (b) & (c) but not (a)In a table, foot note and source notes are ___________________?
In a table, foot note and source notes are ___________________?A. Same
B. Different
C. Identical
D. Non-identical