Concept of function –variables and constants –linear functions- examples,quadratic function –examples,Break even analysis-simple problems.

Arithmetic Progression:Formula for nth term -Sum to n terms –properties of AP-Arithmetic mean-simple problems only. Geometric Progression :Formula for nth term -Sum to n terms-Sum to infinity –Geometric mean-simple problems

Meaning and definition of statistics - Collection of data - primary and secondary data - Classification and tabulation - Diagrammatic representation: types of diagrams - Bar diagram and Pie diagram Graphical representation of Frequency Distribution - Histogram, Frequency Polygon and Ogive curve

Mean, Median, Mode, Geometric mean and Harmonic mean- weighted average - simple problems (direct method). Range - Mean Deviation - Quartile Deviation and all its coefficients, Standard Deviation - Co-efficient of Variation (direct method).

Correlation: Meaning - types of correlation - Scatter diagram - Karl Pearson’s Coefficient of Correlation - Spearman Rank Correlation. Regression: Meaning - Regression equations - Regression equations of X on Y and Y on X Regression coefficients - difference between correlation and regression.