Business Statistics-I Osmania University BCOM 3rd Semester 2025-26 Notes

Unit 1
Business Statistics, Meaning, Scope, Importance and Limitations of Statistics in Business and CommerceVIEW
Statistical InvestigationVIEW
Planning of a Statistical EnquiryVIEW
Sources of DataVIEW
Primary and Secondary DataVIEW
Methods of Collecting DataVIEW
CensusVIEW
Sampling MethodsVIEW
Errors in Statistical Investigation and ApproximationVIEW
Organization of Data, Classification and Tabulation of DataVIEW
Frequency Distribution and Grouped Frequency TablesVIEW
Diagrammatic Presentation of DataVIEW
Graphical Presentation of Data, Bar Diagrams, Pie Diagrams and Line Graphs, HistogramsVIEW
Unit 2
Definition and Types of DataVIEW
Individual Series, Discrete Series and Continuous SeriesVIEW
Meaning And Importance of Measures of Central TendencyVIEW
Arithmetic Mean, Computation for Individual, Discrete and Continuous SeriesVIEW
Combined Mean, Weighted MeanVIEW
Geometric Mean, Meaning, Computation and ApplicationsVIEW
Harmonic Mean, Meaning, Computation and ApplicationsVIEW
Partition Values, Median , Quartiles, Deciles and Percentiles, and ModeVIEW
Comparison of AveragesVIEW
Advantages and Limitations of Different Measures of Central TendencyVIEW
Unit 3
Dispersion, Meaning, Characteristics, Significance, Absolute and Relative Measures of DispersionVIEW
Measurement of Dispersion through Range, Quartile Deviation, Mean Deviation and Standard DeviationVIEW
Computation and Applications for Individual, Discrete and Continuous SeriesVIEW
Relative Measures of DispersionVIEW
Coefficient of RangeVIEW
Coefficient of Quartile DeviationVIEW
Coefficient of Mean Deviation, Combined Standard DeviationVIEW
Applications of Dispersion in Business and Economic AnalysisVIEW
Advantages and Limitations of Various Measures of DispersionVIEW
Unit 4
Coefficient of Variation, Meaning and SignificanceVIEW
Relative Measure of Dispersion, Computation and InterpretationVIEW
Comparison of Consistency and Stability of Two or More SeriesVIEW
Lorenz Curve, Meaning and Significance, Construction of Lorenz Curve, Measurement of Inequality and ConcentrationVIEW
Application of Lorenz Curve in Income, Wealth and Market-Share AnalysisVIEW
Skewness, Meaning and Significance, Symmetrical and Asymmetrical Distributions, Positive and Negative Skewness,VIEW
Karl Pearson’s Coefficient of Skewness, Interpretation and ApplicationsVIEW
Bowley’s Coefficient of Skewness, Interpretation and ApplicationsVIEW
Kurtosis, Meaning and Significance, Types of Kurtosis, Interpretation of Kurtosis in Statistical AnalysisVIEW
Unit 5
Index Numbers in Economic and Business Analysis, Meaning and Importance, Uses and LimitationsVIEW
Problems in the Construction of Index NumbersVIEW
Methods of Constructing Index Numbers, Simple Index Numbers and Weighted Index Numbers, Fisher, Laspeyres, Paasche’s and Marshall Edgeworth MethodsVIEW
Tests of Adequacy of Index Numbers, Unit Test, Time Reversal Test and Factor Reversal Test, Base ShiftingVIEW
Splicing of Index NumbersVIEW
Deflating of Index NumbersVIEW

Business Statistics 2nd Semester Osmania University BBA 2025-26 Notes

Unit 1 [Book]
Meaning, Scope, and Importance of Statistics in BusinessVIEW
Data Types, Primary and SecondaryVIEW
Classification of DataVIEW
Tabulation of DataVIEW
Construction of Frequency DistributionsVIEW
Graphical Presentation, Bar Charts, Pie Charts, Histograms, Frequency Polygons, Line DiagramsVIEW
Unit 2 [Book]
Central Tendency, Mean (Simple/Weighted), Median, ModeVIEW
Geometric MeanVIEW
Harmonic MeanVIEW
Partition ValuesVIEW
Dispersion, Range, Quartile Deviation, Mean Deviation, Standard Deviation, Coefficient of VariationVIEW
SkewnessVIEW
KurtosisVIEW
Business interpretation and ApplicationVIEW
Unit 3 [Book]
Correlation, Meaning, Types (Positive/Negative)VIEW
Scatter PlotsVIEW
Karl Pearson’s CoefficientVIEW
Spearman’s Rank CorrelationVIEW
Simple Regression, Least Squares Method (Line of Best Fit)VIEW
Slope/Intercept Interpretation (No Multiple Regression)VIEW
Unit 4 [Book] 
Time Series, Concept, Components (Trend, Seasonal, Cyclical, Irregular)VIEW
Simple Trend Estimation, Moving Average, Semi-Average MethodVIEW
Index Numbers, Meaning, TypesVIEW
Laspeyres Index NumbersVIEW
Paasche Index NumbersVIEW
Fishers Methods (Introductory Level, Interpretation Focus)VIEW
Unit 5 [Book] 
Probability, Introduction & Definition, Types of EventsVIEW
Addition and Multiplication TheoremsVIEW
Joint ProbabilityVIEW
Marginal ProbabilityVIEW
Conditional ProbabilityVIEW
Bayes’ TheoremVIEW
Sampling, Population vs Sample;VIEW
Importance of Sampling  in Business Decision-MakingVIEW
Sampling Techniques, Probability Sampling (Simple Random, Stratified, Cluster) And Non-Probability Sampling (Convenience, Quota, Judgment)VIEW
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