IGNOU ECO 07 ELEMENTS OF STATISTICS IMPORTANT QUESTIONS
IMPORTANT QUESTIONS ECO 07 1. Write a short note on : Pie Chart Histogram Law of statistical Regularity Multivariate Frequency Distribution Tabulation False Base Line Distrust Statistics Personal interveiwing 2 a) Explain various parts of statistical table. b) State briefly the objectives of classifications. 3 a) Explain the method of Karl Pearson's co-efficient of Skweness. b) State the guidelines that should be kept in mind while preparing diagram. 4. What is class interval? How do you determine the magnitude of the class intervals and class limits? 5. What do you mean by non random sampling, random sampling, and stratified sampling? Explain with the help of suitable examples. 6. Explain the steps involved in a statistical survey starting from 'defining the problem' to 'writing the report'. 7. What are the main sources of secondary data? What precautions should be observed in making use o...