A. Equal to S.D.
B. More than S.D.
C. Less than S.D.
D. Negative
Measures Of Dispersion
The S.D. and variance are …. of origine?
A. Multiplied
B. Variance
C. Change
D. Independent
The …….. in the distribution around which the observation to lie?
A. Mean
B. Dispersion
C. Manner
D. Central value
The value of interval x ± S include ……………?
A. 49.45%
B. 95.45%
C. 68.27%
D. 99.73%
First moment about origin is always equal to ……………?
A. A.M.
B. variance
C. Zero
D. None of these
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.