Business statistics

BUSINESS STATISTICS

Chapter 3. Descriptive Statistics: Numerical Measures

Lecturer: Urmanov Bahromjon

Date: 17.03.2022

TASHKENT-2022

Chapter 3. Descriptive Statistics: Numerical Measures

CONTENTS

3.1. MEASURES OF LOCATION: Mean, Median, Mode, Percentiles, Quartiles

3.2 MEASURES OF VARIABILITY: Range, Interquartile Range, Variance, Standard Deviation , Coefficient of Variation

3.3. MEASURES OF DISTRIBUTION SHAPE, RELATIVE LOCATION, AND DETECTING OUTLIERS: Distribution Shape, z-Scores, Chebyshev’s Theorem, Empirical Rule, Detecting Outliers

3.4. EXPLORATORY DATA ANALYSIS: Five-Number Summary, Box Plot

3.5. MEASURES OF ASSOCIATION BETWEEN TWO VARIABLES: Covariance, Interpretation of the Covariance, Correlation Coefficient, Interpretation of the Correlation Coefficient

3.6. THE WEIGHTED MEAN AND WORKING WITH GROUPED DATA: Weighted Mean, Grouped Data