A. Var(bX) + a
B. b2 Var(X)
C. b Var(x)
D. None of these
A. Equal to S.D.
B. More than S.D.
C. Less than S.D.
D. Negative
A. Ignores relative quantities
B. Compares relative quantities to relative prices
C. Compares absolute prices to absolute quantities
D. Compares relative quantities
A. Maximum
B. Zero
C. Minimum
D. Undefined
A. r + c
B. rc
C. ι r – c ι
D. (r -1) (c -1)
A. The central 95% area
B. The point above above which95% area lies
C. The point above below which 95% area lies
D. Both (a) and (b) but not (c)
A. Approximately normal because is always approximately normally distributed
B. Approximately normal because the sample size is large in comparsion to the population size
C. Approximately normal because of the central limit theorem
D. Normal if the population is normally distributed