Statistics: Collection of methods for planning experiments, obtaining data,
and then organizing, summarizing, presenting, analyzing, interpreting, and
drawing conclusions.
Sir R.A. Fisher: Father of modern statistics.
Population: All subjects possessing a common characteristic that is being
studied.
Sample: A subgroup or subset of the population.
Parameter: Characteristic or measure obtained from a population.
Statistic: Characteristic or measure obtained from a sample.
Karl Pearson: Study of correlation and chi-square test of goodness of fit.
W.S.Gosset: Student’s t-test for small sample
Francis Galton: Regression analysis.
Descriptive Statistics: Collection, organization, summarization, and
presentation of data.
Inferential Statistics: Generalizing from samples to populations using
probabilities. Performing hypothesis testing, determining relationships
between variables, and making predictions.