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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If any statistical tool apply on primary data it becomes a__________?
If any statistical tool apply on primary data it becomes a__________?A. Primary data
B. Secondary data
C. Raw data
D. None of theseA contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be_____________?
A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be_____________?A. 3.86
B. 8.37
C. 9.21
D. 10.63Which of the following describe the middle part of a group of numbers ?
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 ShapeLet Z1,Z2,….Zn be independent and identically distributedrandom variable, satisfying E[ι Zt ι]
Let Z1,Z2,….Zn be independent and identically distributedrandom variable, satisfying E[ι Zt ι]<∞. Let N be an integer valued random variable whose value n depends only on the values of the first n Z¡’s. Suppose E(N)< ∞, then E(Z1,Z2,….Zn)=E(N)E(Z) is called ?A. Independence Equation
B. Sequential Probability Likelihood Equation
C. Neyman Pearson Lemma
D. Wald’s EquationA random variable is that whose value is determined by the outcome of _________________?
A random variable is that whose value is determined by the outcome of _________________?A. Trial
B. event
C. Experiment
D. Random experimentQuartile deviation is not capable of manipulation______________?
Quartile deviation is not capable of manipulation______________?A. Easy
B. mathematically
C. Abjectly
D. Algebraic