Answer all these question Define statistics singular and plural sense with its characteristics.
12. Describe questionnaire filled by enumerators method of collecting primary data. What
Feeadbns must be taken while preparing a questionnaire?
'3. What is meant by statistical errors? Which factors grve rise to statistical error?
14. Write a note on National Sample Survey Organisation.
15. What steps are required while planning a statistical inquiry?
16. data relates to marks obtained by 40 students. Form a frequency distrbutbn t±/e with
a difference of 10 (exclusive type):
53 IS 48 40 42 46 62 75 96 86 73 38 27 20 66 97 19 55 58 77 78 62 71 79 93 88
06 23 07 04 54 60 52 67 65 78 73 78 36
17. From the following mid values form continuous classes explaining the steps involved:
MidVa1ues:32 40 48 56 64
18. What are the basic guidelines for making continuous frequency distribution?
19. Do you agree that classified data is better than raw data? Give reasons
