section 2.2: organizing qualitative Data

Some situations generate a large amount of data that is hard to understand, but we can make it easier to
understand and more compact by organizing it into tables, charts, and graphs

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Frequency Distribution of Qualitative Data

Frequency:

The numbers of times a particular value occurs (also called count)

Frequency Distribution of Qualitative Data

Frequency Distribution:

A listing of all values and their frequencies

Frequency Distribution of Qualitative Data

Relative Frequency

The Ratio of the frequency of a value to the total number of observations.

(frequency / Total number of observations)

Pie and Bar Charts

Two common methods for displaying qualitative data graphically are pie chart and bar charts