RANDOM VARIABLE AND PROBABILITY DISTRIBUTIONS

A. Discrete variable
B. Qualitative variable
C. Continuous variable
D. None of these

A. k Var (Y)
B. k2 Var(Y)
C. Var(Y)
D. k2

A. Var(X) + Var (Y)
B. Var(X) – Var (Y)
C. Var (X)±
D. Zero

A. Mean/S.D.
B. S.D./Mean x 100
C. Mean/S.D. x 100
D. S.D./Mean

A. Zero
B. C
C. 1
D. 2

A. 0.1
B. 1
C. 0.5
D. 0
E. Cannot be determined from given information

A. 1
B. 2
C. 0
D. Constant

A. -1 and 0
B. 0 and 1
C. -1 and 1
D. exactly 1

A. Harmonic Mean
B. Geometric Mean (GM)
C. Arithmetic Mean (AM)
D. Non

A. 0
B. -1
C. 1
D. Non of These