A. -3
B. 0
C. 3
D. Cannot be Computed
E. None of these
Related Mcqs:
- 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 - If 10% is added to each value of variable, the geometric mean of new variable is added by_______________?
A. 5%
B. 10%
C. No Change
D. 110%
E. 90% - Geometric means of X1 and X2 is________________?
A. X1+X2
B. X1+X2x
C. X1+X2−−−−−−−√
D. X1×X2−−−−−−−√
E. X1−−−√+X2−−−√ - Which of the following case is true for hyper geometric distribution________________?
A. Probability remains constant for all the trials.
B. Probability changes from trial to trial
C. Successive trial are dependent
D. Both (b) & (c) but not (a) - 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 - Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________?
A. 50
B. 70
C. 50/20
D. 50-20 = 30
E. 50 - If x is 4 and the distribution is 2, 3, 4, 5, 6, the sum of squared deviations from the x will be______________?
A. 8
B. 10
C. 6
D. 12 - if Var(θˆ)→0 as n → 0, then θˆ is said to be______________?
A. Sufficient
B. Efficient
C. Unbiased
D. Consistent - If “X” is normally distribution with >µ= 8 and S.D. 4, then P(6≤X≤10) may be______________?
A. 0
B. -0.32
C. 1.2
D. 0.2684
