| 1 |
The probability of red card out of 52 cards is. |
- A. 1/4
- B. 1/2
- C. 4/52
- D. zero
|
| 2 |
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|
| 3 |
The probability of an impossible event is. |
- A. Positive
- B. Zero
- C. Negative
- D. 1
|
| 4 |
When three coins are tossed simulatneously, P(3 heads) is. |
- A. 3/8
- B. 1/2
- C. 1/8
- D. 1/4
|
| 5 |
For a constant k, the variance of k is |
- A. zero
- B. k<sup>2</sup>
- C. k
- D. none of these
|
| 6 |
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
|
| 7 |
Coefficient of variation (C.V) is given below |
- A. Mean /S.D x10
- B. Mean/S.D x 100
- C. S.D/Mean x 100
- D. S.D/ Mean
|
| 8 |
A probability function is _________ function. |
- A. Mathematical
- B. Mathematical expectation
- C. Converges
- D. None of these
|
| 9 |
Probability distribution of a continuous random variable can be presented by |
- A. tabular form
- B. Formula
- C. Curve
- D. None of these
|
| 10 |
Var (3x + 2) |
- A. 3 Var(X) + 2
- B. 3 Var X
- C. 9 var (x) + 2
- D. 9 var (x)
|
