# INTRODUCTION AND MEASURE OF CENTRAL TENDENCY - PowerPoint PPT Presentation

INTRODUCTION AND MEASURE OF CENTRAL TENDENCY

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INTRODUCTION AND MEASURE OF CENTRAL TENDENCY

## INTRODUCTION AND MEASURE OF CENTRAL TENDENCY

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1. INTRODUCTION AND MEASURE OF CENTRAL TENDENCY

2. STATISTIC IS A BRANCH OF MATHEMATICS THAT WHICH DEALS WITH: • COLLECTION OF DATA • ARRANGING THE DATA • REPRESENTING THE DATA • ANALYSING THE DATA FOR SOME FRUITFUL PURPOSE

3. DATA COLLECTED CAN BE ARRANGED IN THE FOLLOWING WAYS: • ASCENDING OR DESCENDING ORDERS • UNIVARIATE FREQUENCY DISTRUBUTION TABLE • BIVARIATE FREQUENCY DISTRUBUTION TABLE

4. UNIVARIATE FREQUENCY DISTRUBUTION TABLE

5. BIVARIATE FREQUENCY DISTRUBUTION TABLE

6. DATA CAN BE REPRESENTED BY: • BAR DIAGRAMS, PIE CHARTS • HISTOGRAMS • FREQUENCY POLYGON • OGIVE CURVES

7. BAR DIAGRAMS, PIE CHARTS

8. HISTOGRAMS AND FREQUENCY POLYGON

9. OGIVE CURVES

10. STATISTICAL DATA CAMN BE CLASSIFIED INTO • UNGROUPED/ RAW DATA • UNGROUPED FREQUENCY DISTRIBUTION • GROUPED FREQUENCY DISTRIBUTION • CONTINUOUS CLASS INTERVAL • NON-CONTINUOUS CLASS INTERVAL

11. A PARTICULAR OBJECT/ASPECT UNDER INVESTIGATION IS CALLED A VARIABLE/ATTRIBUTE THERE ARE TWO TYPES OF VARIABLES • DISCRETE • CONTINUOUS

12. ANALYSIS OF THE STATISTICAL DATA CAN BE DONE BY • MEASURING THE CENTRAL TENDENCY • MEASURING THE SPREAD OR DISPERSION

13. THANK YOU