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Presentation of Data — Economics STD 11 Commerce — Question

CBSE BoardEnglish MediumSTD 11 CommerceEconomicsPresentation of Data6 Marks
Question
Explain in brief steps involved in construction of a pie diagram.
✓

Answer

Different steps in construction of a pie diagram are given below:
  1. Convert all the values as a percentage of total value.
  2. Convert the various observations in percent) in the data set into corresponding degrees in the circle by multiplying each by 3.6 (360%100).
  3. If you wish to convert the values directly into degrees, you can use a formula.
  4. Draw a circle of appropriate size with a compass. Size of circle depends on space available and number of sub items in pie diagram. If two or more pie chart are beings drawn which are to be compared then radii of all these must be equal.
  5. Draw points on the circle according to the size of each portion of the data with the help of a protractor and join each of these points to the center of the circle. It is a common practice to keep the largest components at 12 O'clock position in the circle.
  6. Different components should be distinguished from each other by using either different shades or colours.
  7. A proper index explaining shades or colours used for different items should be drawn.

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