If variance = 256, $$\sum \left( {{\text{X}} - \overline {\text{X}} } \right)$$ = 4096, then value of n will be
A. 16
B. 24
C. 4
D. 1024
Answer: Option A
A. 16
B. 24
C. 4
D. 1024
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
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