Lecture-03

Which of the following is used to represent qualitative data?

• a)Pie Chart
  

• 
  b) Histogram

• c) Bar Plot
  

• a & c

What is the main limitation of pie charts?

• a) They are difficult to construct
  

• b) They do not display relative frequencies
  

• c) They are not suitable for data with too many categories
  

• d) They cannot represent qualitative data

Which method of grouping is suitable for data expressed with decimals?

• a) Single-value grouping
  

• b) Limit grouping
  

• c) Cutpoint grouping
  

• d) None of the above

What does a bar chart display on the vertical axis?

• a) Class intervals
  

• b) Relative frequencies
  

• c) Data categories
  

• d) Class marks

What is the advantage of using cutpoint grouping over limit grouping?

• a) It is easier to use
  

• b) It prevents overlap of data
  

• c) It works for continuous data with decimals
  

• d) It simplifies the calculation of class frequencies