(A) SD(X)−SD(Y)
(B) SD(X)+SD(Y)
(C) SD(X)+SD(Y)−−−−−−−−−−−−−−√
(D) Var(X)+Var(Y)−−−−−−−−−−−−−−−√
Tag: Statistics Multiple Choice Questions
If the standard deviation of the values 2, 4, 6, 8 is 2.58, then the standard deviation of the values 4, 6, 8, 10 is__.
(A) 0
(B) 2.58
(C) 5
(D) 4.66
If all values are same then the measure of dispersion will be__.
(A) 1
(B) 0
(C) Mean
(D) Mode
__is used to compare the variation or dispersion in two or more sets of data even though they are measured in different units.
(A) Range
(B) Standard Deviation
(C) Coefficient of Variation
(D) Mean Deviation
Second moment about mean is__.
(A) Standard Deviation
(B) Variance
(C) Coefficient of Variation
(D) None of these
The Coefficient of Skewness is always zero for __ distribution.
(A) Symmetrical
(B) Skewed
(C) All of above
(D) None of these
In uni-model distribution, if mode is less than mean__.
(A) Symmetrical
(B) Normal
(C) Positively Skewed
(D) Negatively Skewed
For Mesokurtic curve of the distribution, β2 is__.
(A) Zero
(B) 3
(C) 3
(D) None of these