(A) A.M.
(B) variance
(C) Zero
(D) None of these
Tag: Statistics Mcqs With Answers
The sum of powers of deviation from mean is zero is called __.
(A) Mean
(B) Lack
(C) Normal
(D) Skewed
If Skewed distribution the three averages mean, median and mode are __.
(A) Identical
(B) Different
(C) Zero
(D) None of these
The sum of the squares of deviations is the least when measured from__.
(A) A.M.
(B) Median
(C) Mode
(D) G.M.
Mean deviation =__ S.D.
(A) 2/3
(B) 4/5
(C) 5/6
(D) 6/5
Standard deviation is always calculated from __.
(A) Mean
(B) Median
(C) Mode
(D) G.M.
suppose for 40 observation, the variance is 50. If all the observation are increased by 20, the variance of these increased observation will be__.
(A) 50
(B) 70
(C) 50/20
(D) 50-20=30
The second moment about mean is __.
(A) Variance
(B) Mean
(C) S.D.
(D) Mode