Unit 2 - Vocabulary

Front

Distribution

Back

Describes the overall pattern of variation of a variable.

Front

Frequency Table

Back

A table that gives the number of cases falling into each category.

Front

Relative Frequency Table

Back

A table that gives the proportion of cases falling into each category.

Front

Bar Chart (or Bar Graph)

Back

Used to display frequencies (counts) or relative frequencies (proportions) for categorical data.

Front

Contingency Table (or Two-Way Table)

Back

A table that summarizes data for two categorical variables.

Front

Conditional Relative Frequency

Back

A relative frequency for a specific part of the contingency table (e.g., cell frequencies in a row divided by the total for that row).

Front

Histogram (or Frequency Histogram)

Back

A graph that plots binned counts as bars, showing the distribution of a numerical variable.

Front

Stem-and-Leaf Plot

Back

A univariate display that organizes numerical data by breaking each observation into a stem (beginning digits) and a leaf (final digit(s)).

Front

Dot Plot

Back

A univariate display showing the exact values of the observations and how frequently they occur.

Front

Shape

Back

A descriptive characteristic of quantitative data distributions, including skewness and modality.