B.Com 1st Year Business Statistics Notes Question Answer :-
Business Statistics ( Code : C-102)
Unit – l : Introductory : Meaning, Scope, Importance and limitations of statistics.
Unit – II : 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 – III : Diagrammatic and Graphic Presentation : One dimensional, Two-dimensional diagram, Histograms, Histogram, Frequency polygon. Frequency curve and give curves, Graphs on natural and semi logarithmic scales, Graphic location of mode, Median and quadrilles.
Unit – IV : Statistical Average : Arithmetic, Geometric and harmonic means, Mode, Median, Quadrilles and percentiles, Simple and weighted averages, Uses and limitations of different averages.
Unit – V : Dispersion and Skewness : Range, Quarterly deviation, Mean deviation and their coefficients, Standard deviation, Coefficient of variation, Skewness and its coefficients.
Unit – VI : Correlation : Karl Pearson’s coefficient of correlation, Probable error and interpretation of coefficient of correlation, Rank Difference method and Concurrent Deviation method.
Unit – VII: Analysis of Time Series : Component of time series, Calculation of secular trend-moving average method and method of least squares.
Unit – VIII : Index Numbers : Utility of index numbers, Problems in the construction of index numbers, Simple and weighted index number, Base shifting, Fishers ideal index number and tests of reversibility.
Unit – IX : Indian Statistic : Census price, Agriculture and industrial statistics.