Variance of twenty observations is 8, if every observation is multiplied by 2, what is the value of variance now?
A. 8
B. 32
C. 16
D. 4
Answer: Option B
A. 8
B. 32
C. 16
D. 4
Answer: Option B
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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