Elementary Statistics

Statistics

The study of how to collect, organize, analyze, and interpret data

Descriptive

To collect and summarize data

Individual

Person/object you want to know more about

Population

Collection of individuals all under the study

Sample

A subset of the population

Census

Getting everyone in the population that’s existed

Parameter

A numerical characteristic of a population (unknown)

Statistics

A number calculated from a sample (known)

Variable

Characteristic/measurement that can be determined for each individual in the population

Data

Literal values (a number)

Qualitive (categorical)

Word/Name that describes the quality of the individual

Quantitative (numerical)

Actual values, numbers, and counting

Ordinal

Can be ordered (qualitative)

Nominal

Cannot be ordered (qualitative)

Discrete

Counting, only certain values, checkpoints (quantitative)

Continuous

Measuring, all the values, the journey (quantitative)