If c is non-random variable, the E(C) is_______________?
If c is non-random variable, the E(C) is_______________?
A. Zero
B. C
C. 1
D. 2
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__________ deviation taken from A.M. is always equal to zero?
__________ deviation taken from A.M. is always equal to zero?A. Mean
B. Sum
C. Average
D. 2.D.Which one of the following measurement does not divide a set of observations into equal parts ?
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. MedianWhich sampling method we will apply if there is no sampling frame?
Which sampling method we will apply if there is no sampling frame?A. Systematic sampling
B. Cluster sampling
C. Simple random sampling
D. Stratified samplingSingle numerical fact is called________?
Single numerical fact is called________?A. Point
B. Data
C. Datum
D. Statisticwhat 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 Harmonic Mean of two number is ‘a’ and ‘b’ is given by ____________?
The Harmonic Mean of two number is ‘a’ and ‘b’ is given by ____________?A. a+b/2
B. 2ab/a+b
C. √ab
D. None of these