BUSINESS STATISTICS

Statistics -Its meaning, nature, scope, importance and limitations.
Collection of Data, Definition of the unit of investigation Census and sample
survey, Direct and indirect personal investigation on the basis of existing
documents, errors in collection of statistics. Preparation of questionnaire and
schedules.
Sample survey—Population, sampling units and sampling variance, concept
of purposive and probability sampling, simple random sampling, stratified random
sampling, systematic sampling, two stage sampling and cluster sampling
Graphical Representation of Data—Histograms, bar charts and pie charts,
frequency polygon, frequency curve, ogive of less than and more than types.
Measures of Central Tendency—Arithmetic mean, geometric mean,
harmonic mean, weighted average, median, mode quartiles, deciles and percentiles,
their relative importance and limitations.
Measures of Dispersion—Range, mean deviation, quartile deviation,
standard deviation, co-efficient of skewness and moments.
Correlation—Its meaning uses and types, Degree of correlation and its
nature, Product moment correlation and rank correlation coefficients.

ELEMENTARY MATHEMATICS

Elementary idea of AP, CP and HP
Permutations and combinations.
Binomial, Logrithmic and Exponential Series
Set Theory—definitions, Union intersection and difference of sets.
Variables, Functions and Graphs Differentiation and integration functions.
Elementary idea of Determinaters, Matrices and Vectors up to purchase of
two vectors.
Co-ordinates
St. Lines
Pair of St. Lines.