A. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu
B. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4
C. n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu
D. ∑n1x/x1
Related Mcqs:
- Harmonic mean cannot be calculated if any one of the values in the data is _____________?
A. Zero
B. Negative
C. Positive
D. All sign - Standard deviation is calculated from the Harmonic Mean (HM) ________________?
A. Always
B. Sometimes
C. Never
D. None of these - Random samples of size 17 are from a population that has 200 elements, a mean of 36, and a standard deviation of 8. which of the following best describes the from of the sampling distribution of the sample mean for this situation ?
A. Approximately normal because the sample size is small relative to the population size
B. Approximately normal because of the central limit theorem
C. Exactly
D. None of these alternatives is correct - 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 - Given the N values in a series, the geometric mean is______________?
A. The third root of the product of N values
B. The square root of the product of N values
C. The fourth root of the product of N values
D. The Nth root of the product of N values - A numerical value calculated from sample is called____________?
A. Mathematics
B. Economics
C. Statistic
D. None of these - Statistic is a numerical quantity, which is calculated from?
A. Population
B. Sample
C. Data
D. Observations - An Index Number calculated for more than one items is called ___________?
A. Sensitive Price Index number
B. Consumer Index Number
C. Simple Aggregation 1. Number
D. Chain Indices - Average calculated used in index number by __________ method?
A. Three
B. Two
C. Four
D. One - Standard deviation is always calculated from _____________?
A. Mean
B. Median
C. Mode
D. G.M.
