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. JShaped 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
