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
Statistics Mcqs
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
For distribution Function F(X),F(-∞)=0 and F(∞)= ?
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