3 Review(s)

UNIT I - Meaning and Definition of Statistics. Function, need and importance of Statistics. Types of Statistics. Meaning of the terms: Population, Sample, Data, Kinds of data. Variables: Discrete and Continuous. Parametric and non-parametric statistics || UNIT II - Meaning, uses and construction of frequency table. Meaning, Purpose, Calculation and advantages of Measures of central tendency -Mean, median and mode. || UNIT III- Meaning, Purpose, Calculation and advantages of Measures of Variability -Range, Quartile Deviation, Mean Deviation, Standard Deviation and Probable Error. Meaning, Purpose, Calculation and advantages of scoring scales: Sigma scale, Z Scale, Hull scale and T scale. || UNIT IV - Normal Curve: Meaning of probability - Principles of normal curve – Properties of normal curve. Divergence form normality – Skewness and Kurtosis. Graphical Representation in Statistics: Line Diagram, Pie diagram, Bar diagram, Histogram, Frequency Polygon, Ogive Curve. || UNIT V- Tests of significance: Independent “t” test, Dependent “t’ test - chi – square test, level of confidence and interpretation of data. Meaning of correlation - co- efficient of correlation - calculation of co-efficient of correlation by the product moment method and rank difference method. Concept of ANOVA and ANCOVA.