The second central moment (about the arithmetic mean) is always equal to
A. Variance
B. Mean deviation
C. Standard deviation
D. Correlation
Answer: Option A
Related Questions on Agricultural Statistics
A. Field trails
B. Exhibitions
C. Competition
D. Fair
The intelligency, ability or efficiency can be measured by use of
A. Median
B. G.M.
C. Weighted H.M.
D. Geometric mean
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