Useful for UGC NET · CSIR NET · ASRB NET · ISS · APPSC
This is the complete study package for Statistical Methods. Each unit builds the toolkit for analysing relationships between variables — fitting curves, measuring correlation, predicting via regression and analysing categorical attributes — with two worked examples per concept.
Bivariate data, principle of least squares, fitting straight line, second-degree polynomial, exponential curves and power curve.
UNIT 2Types of correlation, scatter diagram, Karl Pearson's coefficient, Rank correlation (with & without ties), correlation for bivariate frequency distribution.
UNIT 3Coefficient of concurrent deviation, probable error, coefficient of determination, partial & multiple correlation (3 variables), intra-class correlation, correlation ratio.
UNIT 4Linear vs non-linear regression, regression lines and coefficients, angle between regression lines, correlation vs regression, explained & unexplained variation.
UNIT 5Class & ultimate frequencies, consistency of data (2 & 3 attributes), independence, association & colligation; Yule's coefficients.
PRACTICALFitting line, parabola, exponential, power curve; correlation & regression for grouped/ungrouped data; partial/multiple correlation; Yule's coefficients.
REFERENCECourse outline, textbooks, references and exam blueprint.