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Unit–I
INTRODUCTION
Origin and Development of Statistics – Definition - Importance and Scope - Limitations of Statistics -Distrust of Statistics.
Statistical Investigation: Planning of Statistical Investigation - Census and Sampling Methods - Collection of Primary and Secondary Data - Statistical Errors and Approximation - Classification and Tabulation of data - Frequency distribution.
Unit–II
DIAGRAMMATIC AND GRAPHIC PRESENTATION
Diagrammatic Presentation: One Dimensional and Two Dimensional Diagrams – Pictograms –Cartograms Graphic Presentation: Technique of Construction of Graphs - Graphs of Frequency Distribution - Graphs of Time Series or Histograms.
Unit–III
MEASURES OF CENTRAL TENDENCY
Introduction –Significance - Arithmetic Mean - Geometric Mean - Harmonic Mean - Mode – Median -Quartiles and Percentiles - Simple and Weighted Averages - Uses and Limitations of different Averages.
Unit–IV
MEASURES OF DISPERSION, SKEWNESS AND KURTOSIS
Measures of Dispersion: Significance - Characteristics - Absolute and Relative Measures - Range -Quartile Deviation - Mean Deviation- Standard Deviation - Coefficient of Variation.
Measures of Skewness - Karl Pearson’s Coefficient of Skewness - Bowley’s Coefficient of Skewness- Kelly’s Measure of Skewness – Kurtosis: Mesokurtosis, Platykurtosis and Leptokurtosis.
Unit–V
CORRELATION
Meaning -Types - Correlation and Causation – Methods: Scatter Diagram - Karl Pearson’s Coefficient of Correlation - Probable Error and Interpretation of Coefficient of Correlation - Rank Correlation -Concurrent Deviation Method.
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CategoriesArts and Science
Format EPUB
TypeeBook