A. Zero
B. b
C. None
Related Mcqs:
- 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 - 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 - Mean Deviation, Variance and Standard Deviation of the values 4, 4, 4, 4, 4, 4 is_________________?
A. 4
B. 8
C. 2
D. 12
E. 0 - Arithmetic mean of two positive numbers “X” and “Y” is_________________?
A. ab2
B. 2a2
C. (a+b)/2
D. a−b2
E. 2a+b - The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this distribution is_____________?
A. Positively Skewed
B. Symmetrical
C. Asymptotic
D. Negatively Skewed - The sum of the deviations about the mean is always______________?
A. Range
B. Zero
C. Total Standard Deviation
D. Positive
E. Negative - The mean deviation of the values, 18, 12, 15 is____________?
A. 6
B. Zero
C. 3
D. 2 - The sum of squared deviations of a set of n values from their mean is__________________?
A. Zero
B. Maximum
C. Least
D. None - Standard deviation is calculated from the Harmonic Mean (HM) ________________?
A. Always
B. Sometimes
C. Never
D. None of these - Second moment about mean is_______________?
A. Standard Deviation
B. Variance
C. Coefficient of Variation
D. None of these
