The mean of a constant “b” is_________________?
A. Zero
B. b
C. None
Sum of deviations will be zero if it is taken from_________________?
Sum of deviations will be zero if it is taken from_________________?
A. Mean
B. Mode
C. Median
D. Standard Deviation
The mean of 10 numbers is 9, then sum of these numbers will be__________________?
The mean of 10 numbers is 9, then sum of these numbers will be__________________?
A. 9
B. 0.9
C. 70
D 90
For a certain distribution if ∑(x−2)=18,∑(x−24)=0,∑(x−28)=−24) then arithmetic mean is_______________?
For a certain distribution if ∑(x−2)=18,∑(x−24)=0,∑(x−28)=−24) then arithmetic mean is_______________?
A. 21
B. 24
C. 28
D. 0
Arithmetic mean of two positive numbers “X” and “Y” is_________________?
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 calculation of mean and variance is based on______________?
The calculation of mean and variance is based on______________?
A. Small values only
B. Large values only
C. Extreme values only
D. All values
If β2=m4m22
If β2=m4m22<3, the distribution is called______________?
A. Normal
B. Mesokurtic
C. Leptokurtic
D. Platykurtic
The degree of peakedness is called__________________?
The degree of peakedness is called__________________?
A. Dispersion
B. Skewness
C. Symmetry
D. Kurtosis
Quartile Coefficient of skewness lies between______________?
Quartile Coefficient of skewness lies between______________?
A. 0 and 1
B. -1 and +1
C. -1 and 0
D. None of these
If the third moment about mean is zero then distribution is_______________?
If the third moment about mean is zero then distribution is_______________?
A. Mesokurtic
B. Positively Skewed
C. Symmetrical
D. Negatively Skewed