1. Introduction to Statistics and Data Analysis

3. INTRODUCTION Statistics is concerned with numerical facts about a problem or issue – the facts themselves, and with methods of analyzing these facts in order to solve or shed light on the problem or issue. The numerical facts with which statistics are concerned are commonly called data. We therefore talk about the collection and analysis of data in respect of a particular problem.

5. DATA FOR STATISTICS Exact definition of the problem Definition of the units Scope of the enquiry Accuracy of the data Types of Data Primary and secondary data Quantitative and qualitative data Continuous and discrete data

6. METHODS OF COLLECTING DATA Published Statistics Personal Investigation/Interview Delegated Personal Investigation/Interview Questionnaire

7. Simple Tabulation

8. Complex Tabulation

9. Secondary Statistical Tabulation

10. Rules for Tabulation

13. FREQUENCY DISTRIBUTIONS A frequency distribution is a tabulation which shows the number of times (i.e. the frequency) each different value occurs.

14. Simple Frequency Distributions

15. Grouped Frequency Distributions

16. Cumulative Frequency Distributions

17. Relative Frequency Distributions

18. Example

21. Solution