The value of $${\chi ^2}$$ ranges from and is always positive.
A. -1 to +1
B. 0 to 2
C. 0 to ∞
D. 0 to 8
Answer: Option C
A. -1 to +1
B. 0 to 2
C. 0 to ∞
D. 0 to 8
Answer: Option C
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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