A. 1/4
B. 2/4
C. 3/4
D. 1
View AnswerC. 3/4
Probability Theory MCQs
Suppose X has p.d given by X= -2 -1 0 1 f(x) = 2a 3a a 3a Then a is
A. 0.100
B. 0.1111
C. 0.2
D. None of the above
View AnswerB. 0.1111
If X & Y are two independent variable then Var (X-Y ) =
A. Var (X)+ Var( Y)
B. Var (X)- Var( Y)
C. E(X)-E(Y)
D. None of the above
View AnswerB. Var (X)- Var( Y)
A desecrate probability distribution may be represented by.
A. A table
B. A mathematical function
C. A histogram
D. All of above
View AnswerB. A mathematical function
A continuous probability distribution is not represented by.
A. A table
B. A mathematical function
C. Graph
D. A density function
View AnswerB. A mathematical function
Find the value of k so that function f(x) defined as follows may be density function. f(x)=kx, 0≤ x≤2
A. 0
B. 1
C. 1/2
D. None of the above
View AnswerC. 1/2
What is the mathematically expectations of number of die when One fair die are tossed.
A. 1
B. 2.5
C. 3.5
D. 1.5
View AnswerC. 3.5
F (-∞) =
A. 0
B. 1
C. None of the above
D. Both A & B
View AnswerA. 0
P (S) =
A. 0
B. 1
C. None of the above
D. Both A & B
View AnswerB. 1
Two coins are tossed what is the conditional probability that two heads results given that there is at least one head.
A. 1/3
B. 2/3
C. 4/3
D. None of the above
View AnswerA. 1/3