The first moment about means is always_________________?
The first moment about means is always_________________?
A. Zero
B. 1
C. Negative
D. None of these
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In statistics, conducting a survey means_____________?
In statistics, conducting a survey means_____________?A. Collecting information from elements
B. Making mathematical calculations
C. Drawing graphs and pictures
D. None of the aboveThe 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 theseIn grouped data, the range is the difference between ________________?
In grouped data, the range is the difference between ________________?A. Two extreme class boundaries
B. Two extreme class frequency
C. Two extreme class limits
D. None of theseThe calculation of mean and variance is based on______________?
The calculation of mean and variance is based on______________?A. Small values only
B. Large values only
C. Extreme values only
D. All valuesWhich branch of statistics deals with the techniques that are used to organize, summarize, and present the data?
Which branch of statistics deals with the techniques that are used to organize, summarize, and present the data?A. Advance Statistics
B. Descriptive Statistics
C. Inferential Statistics
D. Bayesian StatisticsIf E (ax) = _______________?
If E (ax) = _______________?A. A
B. a E(x)
C. x E(a)
D. Non of these