A. a+b/2
B. 2ab/a+b
C. √ab
D. None of these
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 - The Harmonic Mean of any two numbers is________________?
A. a+b2
B. 2aba+b
C. ab−−√
D. a+b - Combine mean calculated by different given mean is ________?
A. n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu
B. n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4
C. n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu
D. ∑n1x/x1 - 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 - 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 - What is the mean of binomial distribution ____________?
A. X
B. n x p
C. n(1 – 1)
D. ∑fx/∑f - As the normal distribution is symmetrical, its mean, median and mode are:____________?
A. Coincide
B. Not equal
C. Different
D. None of These - Mean is relatively ____ measure?
A. Stable
B. manipulation
C. Change
D. Group - Median is _______ than mean is a positive skewed distribution?
A. Great
B. lesser
C. Equal
D. None of these
