| 1 |
Var (B/aX) =? |
- A. 1/aVar(X)
- B. b<sup>2</sup>/a<sup>2</sup> Var(X)
- C. b<sup>2</sup>/a Var(X)
- D. None of these
|
| 2 |
Which is the impossible event when a dice is rolled. |
- A. 5 or 6
- B. 6 or 7
- C. 2 or 3
- D. 1
|
| 3 |
When three coins are tossed simulatneously, P(3 heads) is. |
- A. 3/8
- B. 1/2
- C. 1/8
- D. 1/4
|
| 4 |
What is the probability that a value chosen at random from a particular population is larger than the median of the popultion. |
- A. 0.25
- B. 0.5
- C. 1.0
- D. 0.67
|
| 5 |
F(y<sub>1</sub>) ≤ F(y<sub>2</sub>) if |
- A. y<sub>1</sub>= y<sub>2</sub>
- B. Y<sub>1</sub>>y<sub>2</sub>
- C. y<sub>1</sub>≤y<sub>2</sub>
- D. y≥1/2
|
| 6 |
If x is a random variable with E(x) = 5 then E (3x - 2) = |
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| 7 |
Probability distribution of a continuous random variable can be presented by |
- A. tabular form
- B. Formula
- C. Curve
- D. None of these
|
| 8 |
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| 9 |
Which of the following cannot be probability of an event. |
- A. 0
- B. 1
- C. 0.32
- D. 1.00
|
| 10 |
The simple probability of occurrence of an event in called the. |
- A. Joint probability
- B. Conditional probability
- C. Marginal probability
- D. Subjective probability
|
