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
A. Variance
B. Mean deviation
C. Standard deviation
D. Correlation
Answer: Option A
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
Join The Discussion