Frequency Tables Flashcards

A table used to organise data into categories or intervals, showing how often each category or interval occurs.

The number of times a particular value or category appears in a data set.

A frequency table where data is grouped into intervals (e.g., 0-10, 11-20) instead of listing individual values.

A range of values in a grouped frequency table (e.g., 10-20).

The value halfway between the upper and lower boundaries of a class interval, calculated as (lower boundary + upper boundary) ÷ 2.

The running total of frequencies as you move through the data set.

The proportion of times a value occurs, calculated as frequency ÷ total frequency.

A graph created by plotting the midpoints of class intervals against their frequencies and joining the points with straight lines.

The class interval with the highest frequency in a grouped frequency table.

They summarise large data sets and make patterns easier to identify, especially for continuous data.