| 1 |
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>
|
| 2 |
If the random variable x denotes the number of heads of when three distinct coins are tossed k the X assumes values. |
- A. 0,1,2,3
- B. 1,3,3,1
- C. 1,2,3
- D. 1,1,1,1
|
| 3 |
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
|
| 4 |
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.
|
| 5 |
The result of no interest of an experiment is called. |
- A. Contstant
- B. even
- C. Failure
- D. Success
|
| 6 |
Which is the impossible event when a dice is rolled. |
- A. 5 or 6
- B. 6 or 7
- C. 2 or 3
- D. 1
|
| 7 |
Variance <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">σ<sup>2 </sup></span>is equal to E(y<sup>2</sup>) - -------------------- |
- A. E(y)
- B. [E(y)]<sup>2</sup>
- C. E(y)<sup>2</sup>
- D. E<sup>2</sup> (y)
|
| 8 |
A probability function is _________ function. |
- A. Mathematical
- B. Mathematical expectation
- C. Converges
- D. None of these
|
| 9 |
The probability of getting two red balls with replacement from a bag containing 4 red, 3 white and 3 black balls is. |
- A. 4/25
- B. 1/25
- C. 9/100
- D. 2/25
|
| 10 |
The probability of drawan any one spade card is. |
- A. 1/32
- B. 1/18
- C. 1/4
- D. 4/13
|
