If N = 100, $$\sum {\text{X}}$$ = 600, $$\sum {{\text{X}}^2}$$ = 10000, then standard deviation will be
A. 8
B. 12
C. 64
D. 100
Answer: Option A
A. 8
B. 12
C. 64
D. 100
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
Solution