| 1 |
A hypergometric random variable is a (an) |
- A. Independent variable
- B. Continuous random variable
- C. Discrete random variable
- D. None of these
|
| 2 |
The numebr of classes in a frequency distribution is obtained by dividing the range of variable by the. |
- A. Total frequency
- B. Class interval
- C. Relative freqeuncy
- D. Mid -points
|
| 3 |
The median divides the data into |
- A. Two halves
- B. Four quarters
- C. Single unit
- D. Six parts
|
| 4 |
For a constant K ,the variance of K. |
- A. Zero
- B. A<sup>-2</sup>
- C. K
- D. None of these
|
| 5 |
If a curve can be divided into two parts that are marror images,it is called a. |
- A. Skewed curve
- B. Symmetrical curve
- C. J-Shaped curve
- D. Frequency curve
|
| 6 |
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.
|
| 7 |
A fair die is rolled three times. The probability of getting three "aces" is |
|
| 8 |
When a graph is made to show the total and part of the data, we draw. |
- A. Simple bar chart
- B. Multiple bar chart
- C. Component barchart
- D. None of these
|
| 9 |
A numerical characteristics of a sample is called. |
- A. Parameter
- B. Variable
- C. Sample
- D. Statistics
|
| 10 |
If Mean = 25 and S<sup>2</sup> =25 the C.V is |
- A. 100%
- B. 25%
- C. 20%
- D. None of these
|