Random numbers are also called__________________?
A. Random experiment
B. random Errors
C. Random digits
D. None of these
A continuous random variable which can assume all possible values on scale in a given _______________?
A continuous random variable which can assume all possible values on scale in a given _______________?
A. Interval
B. Point
C. Time
D. Sample space
Hourly temperature recorded by weather bureau is the example of ___________?
Hourly temperature recorded by weather bureau is the example of ___________?
A. Discrete variable
B. Qualitative variable
C. Continuous variable
D. None of these
Var (kY)= ____________?
Var (kY)= ____________?
A. k Var (Y)
B. k2 Var(Y)
C. Var(Y)
D. k2
For two independent random variables X & Y, Var (x ± y)=___________?
For two independent random variables X & Y, Var (x ± y)=___________?
A. Var(X) + Var (Y)
B. Var(X) – Var (Y)
C. Var (X)±
D. Zero
Coefficient of variation (C.V) is given below:_________________?
Coefficient of variation (C.V) is given below:_________________?
A. Mean/S.D.
B. S.D./Mean x 100
C. Mean/S.D. x 100
D. S.D./Mean
If c is non-random variable, the E(C) is_______________?
If c is non-random variable, the E(C) is_______________?
A. Zero
B. C
C. 1
D. 2
What is the probability that a ball drawn at random from a jar ?
What is the probability that a ball drawn at random from a jar ?
A. 0.1
B. 1
C. 0.5
D. 0
E. Cannot be determined from given information
Probability of occurrence of an event lies between______________?
Probability of occurrence of an event lies between______________?
A. -1 and 0
B. 0 and 1
C. -1 and 1
D. exactly 1
For a random variable X, E(X) is_______________?
For a random variable X, E(X) is_______________?
A. Harmonic Mean
B. Geometric Mean (GM)
C. Arithmetic Mean (AM)
D. Non