CH#1

Introduction To StatisticsFrom

“Prof. Sher Muhammad Chaudry”5th Edition

Chapters included in course

• 1. Introduction• 2. Presentation of data• 3. Measures of central tendency or averages• 4. Measures of dispersion, moments and

skewness• 5. Index numbers• 8. Probability• 10. Discrete probability distributions• 11. Continuous probability distribution• 12. Simple regression and correlation

Chapter # 1- Introduction

• Meaning of Statistics:

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Characteristics of Statistics

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Branches of statistics

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Terms mostly used in statistics

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Importance of Statistics

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Observation and variable

• Observation:

• Variable:

Qualitative & Quantitative variables

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Discrete & Contiunuous variables

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Errors of measurement: Absolute and relative error

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Classification and Collection of statistical data

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