What may be the areas of your interest? Write any three.
(i) Sale of car, (ii) Production of shoe-polish, and (iii) Production of bathing soap.
Write any three features of a good questionnaire?
What are secondary data?
Write down the sources of secondary data.
When are secondary sources of data usually used?
What precautions should be taken while using secondary data?
Name any three statistical tools.
What is a questionnaire?
Differentiate between Primary Data and Secondary Data.
Write down the essential qualities of a good questionnaire.
Show the following data with the help of a bar-diagram. Through which media do the people know about the product?
Mock Test Series
