Q1) The independent variable can also be called a(n)

i)  free variable.            

ii)  explanatory variable.  .  

iii)  suggestive variable.

iv)  outcome variable

Q2)Which of the given must not be done when constructing frequency distribution?

i) Choose the number of classes desired

ii) Determine the range

iii) Use a class width with an even number

iv) Use classes which are mutually exclusive

Q3) What are the boundaries of the class 1-16?

i) 15      

ii) 1 and 16      

iii) 0.5 and 16.5      

iv)  8.5 and 15

Q4) Range 31.57 - 34.03 is not good choice for class boundaries because

i) it is too narrow 

ii) the class limits are difficult to interpret

iii) it is too wide        

iv) it has an odd width

Q5) Determine the class with the greatest number of data values.

 i) 70    

ii) 90    

iii) 60      

iv) 40