Statistics Topics

A population is a study’s entire set of subjects of interest, characterized by fixed parameters. At the same time, a sample is a subset of this population, chosen to represent it and described by variable statistics.

Data in statistics is categorized into qualitative (categorical) and quantitative (numerical) types. Qualitative data, further divided into nominal (no inherent order) and ordinal (ranked but not evenly spaced), represents categories or characteristics.

Descriptive statistics involves summarizing and organizing data to describe its basic features, using tools like mean, median, mode, variance, and standard deviation, along with graphical representations like charts and histograms.