MATH

deals with the development and exposition of theories, which constitute the basis of statistical methods

refers to those procedures and techniques used in the collection, presentation, analysis and interpretation of data.

methods concerned with the collection, description, and analysis of a set of data without drawing conclusions or inferences about a larger set.

methods concerned with making predictions or inferences about a larger set of data using only the information gathered from a subset of this larger set.

is the complete collection of all elements (e.g. scorers, people, measurements, etc.) to be studied.

is a sub-collection of elements drawn from a population

are samples that are drawn from the population by following set of rules wherein each unit in the population has an equal chance to be chosen as a sample.

are samples that are drawn from the population deliberately

members of the population are selected in such a way that each unit in the population has an equal chance of being selected.

the population was divided into at least two different subpopulations (strata) that share the same characteristics (such as IQ, gender, educational attainment, etc.) and the samples are drawn from each stratum.

the population area was first subdivided into sections (or clusters), then randomly select a few of those sections, and then choose all the members from those selected sections.

is a characteristic or attribute of persons or objects which can assume different values or labels for different persons or objects under consideration.

is the process of determining the value or label of a particular variable for a particular experimental unit.

is the individual or object on which a variable is measured.

a variable which can assume finite, or, at most, countably infinite number of values; usually measured by counting or enumeration.

a variable which can assume infinitely many values corresponding to a line interval

a variable that yields categorical responses

a variable that takes on numerical values representing an amount or quantity

select a starting point (random start) then select every kth (such as every 10th) element in the population.