There will be only one regression line in case of two variables, if
A. r = + 1
B. r = 0
C. r = 1
D. r is either
Answer: Option A
A. r = + 1
B. r = 0
C. r = 1
D. r is either
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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