Summarizing Data in Tables and Graphs

These flashcards cover key vocabulary terms and definitions related to summarizing qualitative and quantitative data in tables and graphs.

Qualitative Data

Data that describes qualities or characteristics.

Frequency Distribution

A table that lists each category of data and the number of occurrences for each.

Relative Frequency

The proportion (or percent) of observations within a category.

Bar Graph

A graph that represents data with rectangular bars, heights corresponding to frequencies or relative frequencies.

Pie Chart

A circular graph divided into sectors, where each sector represents a category of data.

Histogram

A bar graph that represents the distribution of numerical data, with rectangles touching each other.

Dot Plot

A simple visual representation of data showing each observation as a dot above its value on a number line.

Uniform Distribution

A distribution where the frequency of each value of a variable is evenly spread out.

Bell-shaped Distribution

A distribution where the highest frequency occurs at the median, tapering off symmetrically on either side.

Skewed Distribution

A distribution that is not symmetrical, with tails on one side longer than the other.

Pareto Chart

A bar graph in which the bars are arranged in descending order of frequency.

Misleading Graph

A graph that unintentionally or deliberately creates an incorrect impression of the data.

Data Class

Categories into which data are grouped based on intervals.

Class Width

The difference between lower limits of consecutive classes in data categorization.

Time Series Data

Data measured at different points in time.