Unpacked Content
Knowledge
Students know:
- Characteristics of a two-way frequency table.
- Methods for converting frequency tables to relative frequency tables.
- That the sum of the frequencies in a row or a column gives the marginal frequency.
- Techniques for finding conditional relative frequency.
- Techniques for finding the joint frequency in table.
- How to identify possible associations and trends in categorical data.
Skills
Students are able to:
- Accurately construct frequency tables and segmented bar graphs.
- Accurately construct relative frequency tables.
- Accurately find the joint, marginal, and conditional relative frequencies.
- Recognize and explain possible associations and trends in the data.
Understanding
Students understand that:
- Two-way frequency tables may be used to represent categorical data.
- Relative frequency tables show the ratios of the categorical data in terms of joint, marginal, and conditional relative frequencies.
- Two-way frequency or relative frequency tables may be used to aid in recognizing associations and trends in the data.
Vocabulary
- Categorical data
- Two-way frequency Tables
- Segmented Bar Graphs
- Relative frequency
- Joint frequency
- Marginal frequency
- Conditional relative frequency
