17. Generally, in which 3 parts economics is discussed?
18. Write any two qualities of a good questionnaire.
19. Mention the types of variable.
20. What kind of diagrams are more effective in presenting the following?
a) Monthly rainfall in a year
b) Composition of the population of Delhi by religion
21. What is mode? Give formula to find out mode in continuous series.
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Answer:
july is monthly rainfall in year
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