For distribution Function F(X),F(-∞)=0 and F(∞)= ?
A. 0
B. -1
C. 1
D. Non of These
The distribution function F(X) is represent by_______________?
The distribution function F(X) is represent by_______________?
A. P(X=x)
B. P(X
C. P(X>x)
D. P(X≤x)
Probability distribution of a random variable is also know as Probability_________________?
Probability distribution of a random variable is also know as Probability_________________?
A. Probability Function
B. Distribution Function
C. Probability Distribution
D. Probability Density Function
The probability function is always______________?
The probability function is always______________?
A. Negative
B. Non Negative
C. Positive
D. None
A discrete probability distribution may be represented by____________?
A discrete probability distribution may be represented by____________?
A. A Table
B. A Graph
C. A mathematical Equation
D. All of these
For discrete random ‘X’, the expectation of X i.e., E(x) is equal to:________________?
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
If a & b are constants, then Var (a + bX) equal to_________________?
If a & b are constants, then Var (a + bX) equal to_________________?
A. Var(bX) + a
B. b2 Var(X)
C. b Var(x)
D. None of these
The number of defective bulbs in a lot is example of ____________?
The number of defective bulbs in a lot is example of ____________?
A. Continuous variable
B. Discrete variable
C. Function
D. None of these
A random variable is ____________ ?
A random variable is ____________ ?
A. Not a function
B. A continuous variable
C. A function
D. None of these
A function probability that a random variable of x has a value less than is called _____________?
A function probability that a random variable of x has a value less than is called _____________?
A. Random function
B. Distribution function
C. Continuous function
D. probability function