· Mean, Median, Mode-Calculations, their relative merits and demerits
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Absolute and Relative Measures of Dispersion
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Methods of measuring dispersion - Range, Quartile Deviation, Mean Deviation & Standard Deviation;
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Skewness – concept of positive and negative skewness
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Measures of Skewness - Karl Pearson’s and Bowley’s measure
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Correlation – Meaning, types and degrees
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Simple Correlation - Karl Pearson’s coefficient of correlation;
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Spearman’s Rank Correlation Coefficient
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Concept of Simple Regression;
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Regression Lines and Regression Coefficients;
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Fitting of Regression Lines (Method of Least Squares)
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Concept of an index numbers- Simple & Weighted
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Laspeyer’s, Paasche’s, and Fisher’s index numbers;
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Time reversal, factor reversal, and circular tests;
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Consumer Price Index Number & Wholesale Price Index number;
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Problems in the construction of index numbers
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Time series – Meaning and Components;
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Measurement of trend by moving averages and least square method;
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Measurement of seasonal variation by simple averages;
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Interpolation – Meaning;
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Methods of interpolation: Binomial Expansion method and Newton’s Advancing Difference method
1.
Gupta, S.P., Statistical Methods, S. Chand and Sons, 2012
2.
Nagar, A.L. and R.K. Das, Basic Statistics, Oxford University Press, 1985.
1.
Croxton, F.E., D.J.Cowden and S. Klein, Applied General Statistics, Prentice Hall.
2.
Speigel, M.R.,Schaum’s Outline of Theory and Problems of Statistics, McGraw Hill Book, 2017.