Search
.Management Sciences
Category: RANDOM VARIABLE AND PROBABILITY DISTRIBUTIONS
If a & b are constants, then Var (a + bX) equal to_________________?
0
A. Var(bX) + a
B. b2 Var(X)
C. b Var(x)
D. None of these
The basic random numbers are ________________?
A. 0 and 1
B. 0,1,2,…………9
C. 1,2,3….10
D. None of these
Experiment in which outcomes vary from trial to trial _________________?
A. Experiment
B. Variable
C. Random experiment
D. Non of these
The time taken by an athlete to run a 400 mile race in SAF games ________________?
A. Continuous data
B. Random
C. Discrete data
D. Non of these
Discrete random variable is real valued function defined on a ___________ sample space?
A. Discrete
B. Variable
C. Scale
D. Non of these
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
For discrete random ‘X’, the expectation of X i.e., E(x) is equal to:________________?
A. ∑P(x)
B. ∑x.P(x)
C. ∑x2P(x)
D. One
Recent Comments