| 1 |
the term 'event' is used for. |
- A. Time
- B. Subaet of the sample space
- C. Total number of outcomes
- D. Probability
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| 2 |
The sum of probabilities of events of a sample space is always. |
- A. Equal
- B. Discrete
- C. Continuous
- D. Always greater then oen
|
| 3 |
Why are the outcomes of a coin tossing mutually exclusive. |
- A. The outcome of any toss is not affected by teh outcome of those preceding it.
- B. Both a head and a tail cannot turn up on any one toss
- C. The probability of getting a head and the probability of getting a tail is the same.
- D. All of these
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| 4 |
Which of the following cannot be probability of an event. |
- A. 0
- B. 1
- C. 0.32
- D. 1.00
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| 5 |
The range of probability is between |
- A. 0 to 2
- B. -1 to +1
- C. 0 to 8
- D. 0 to 1
|
| 6 |
If two coins are tossed, the probability of getting one head and one tail is. |
- A. 1/4
- B. 2/4
- C. 3/4
- D. 2/3
|
| 7 |
Which one is not an example of random experiments. |
- A. A coin is tossed and the outcome is either a head or a tail
- B. A six sided aid is rolled
- C. All medical insurance clams received by a company in a given year.
- D. Some one of person will be admitted to a hospital emergency room during any hour.
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| 8 |
A probability function is _________ function. |
- A. Mathematical
- B. Mathematical expectation
- C. Converges
- D. None of these
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| 9 |
Probability distribution of a continuous random variable can be presented by |
- A. tabular form
- B. Formula
- C. Curve
- D. None of these
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| 10 |
If y =-7x then E(y) = ............... |
- A. E(x)
- B. -7X
- C. -7E(X)
- D. Zero
|
