For Mesokurtic curve of the distribution, β2 is__________________?
A. Zero
B. 3
C. 3
E. None of these
Basic Statistics Mcqs
In uni-model distribution, if mode is less than mean_______________?
In uni-model distribution, if mode is less than mean_______________?
A. Symmetrical
B. Normal
C. Positively Skewed
D. Negatively Skewed
The Coefficient of Skewness is always zero for ____________ distribution?
The Coefficient of Skewness is always zero for ____________ distribution?
A. Symmetrical
B. Skewed
C. All of above
D. None of these
Second moment about mean is_______________?
Second moment about mean is_______________?
A. Standard Deviation
B. Variance
C. Coefficient of Variation
D. None of these
_____________is used to compare the variation or dispersion in two or more sets of data even though they are measured in different units?
_____________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
If all values are same then the measure of dispersion will be________________?
If all values are same then the measure of dispersion will be________________?
A. 1
B. 0
C. Mean
D. Mode
E. Median
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_______________?
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
E. 2.33
If X and Y are independent then SD (X − Y) is________________?
If X and Y are independent then SD (X − Y) is________________?
A. SD(X)−SD(Y)
B. SD(X)+SD(Y)
C. SD(X)+SD(Y)−−−−−−−−−−−−−−√
D. Var(X)+Var(Y)−−−−−−−−−−−−−−−√
18) If Y=−8X − 5 and SD of X is 3, then SD of Y is
Standard deviation is calculated from the Harmonic Mean (HM) ________________?
Standard deviation is calculated from the Harmonic Mean (HM) ________________?
A. Always
B. Sometimes
C. Never
D. None of these
Variance remains unchanged by change of________________?
Variance remains unchanged by change of________________?
A. Origin
B. Scale
C. Both
D. None of these