For discrete random ‘X’, the expectation of X i.e., E(x) is equal to:________________?

Related Mcqs:

1. Discrete random variable is real valued function defined on a ___________ sample space?

   A. Discrete
   B. Variable
   C. Scale
   D. Non of these

2. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as_________________E[∏(θ)ιX1,X2,…..,Xn] is called?

   A. Posterior Bay’s estimator
   B. Minimax estimator
   C. Bay’s estimator
   D. Sufficient estimator

3. Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as______________E[∏(θ)ιX1,X2,…..,Xn] is called?

   A. Posterior Bay’s estimator
   B. Minimax estimator
   C. Bay’s estimator
   D. Sufficient estimator

4. Two digit random numbers are ________________?

   A. 2
   B. 10
   C. 99
   D. 100

5. The basic random numbers are ________________?

   A. 0 and 1
   B. 0,1,2,…………9
   C. 1,2,3….10
   D. None of these

6. A discrete probability distribution may be represented by____________?

   A. A Table
   B. A Graph
   C. A mathematical Equation
   D. All of these

7. Which of the following is not an example of a discrete probability distribution ?

   A. The sale or purchase price of a house
   B. The number of bedrooms in a house
   C. Whether or no t a home has a swimming pool in it.
   D. Non of these

8. For a random variable X, E(X) is_______________?

   A. Harmonic Mean
   B. Geometric Mean (GM)
   C. Arithmetic Mean (AM)
   D. Non

9. Random numbers are used for selection of ____________?

   A. Random space
   B. Space
   C. Random sample
   D. Non of these

10. When the word random variable use in statistics it must have?

    A. Variable
    B. Probability distribution 
    C. Values
    D. None of these

    Submitted by: Nimra Shaheen