| 1 |
When two coins are tossed simultaneously, P (one head ) is. |
- A. 1/2
- B. 1/4
- C. 3/4
- D. 1.0
|
| 2 |
E(y-<span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ</span>) is equal to |
- A. E(y)
- B. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ</span>
- C. zero
- D. y-<span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ</span>
|
| 3 |
The probability of getting one red ball from a bag constaining 4 red, 3 white and 3 black balls is. |
- A. 3/10
- B. 1/5
- C. 2/5
- D. 1/2
|
| 4 |
If the random variable x denotes the number of heads when three distinct coins are tossed, the x assumes values |
- A. 0, 1, 2, 3
- B. 1, 3, 3, 1
- C. 1, 2, 3
- D. None of these
|
| 5 |
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.
|
| 6 |
F (+∞) is always equal to: |
- A. 0
- B. Two
- C. One
- D. None of these
|
| 7 |
The sum of probabilities of events of a sample space is always. |
- A. Equal
- B. Discrete
- C. Continuous
- D. Always greater then oen
|
| 8 |
The probability of drawing a king of spade from a pack of 52 cards is. |
- A. 1/4
- B. 1/13
- C. 1/26
- D. 1/52
|
| 9 |
The probability of a continuous random variable at x = a is --------------- |
- A. One
- B. Zero
- C. Between 0 and 1
- D. More than one
|
| 10 |
A student soved 25 questions from first 50 questios of a book to be solved. The prob, that he will solve the remaining all questions. |
- A. 0.25
- B. 0.51
- C. 1
- D. 0
|
