### Examples

*Algebra 1 Example:*Complete the frequency table below.

Has an A in math | Doesn't have an A in math | Total | |

Plays an instrument | 20 | 90 | |

Doesn't play an instrument | 20 | ||

Total | 350 |

Using the information in the table, it is possible to determine that the second column contains the numbers 70 and 240. This means that there are 70 students who play an instrument but do not have an A in math and the total number of students who play an instrument is 90. The ratio of the joint frequencies in the first column is 1 to 1 and the ratio in the second column is 7 to 24, indicating a strong positive association between playing an instrument and getting an A in math.

**Subject Area:**Mathematics (B.E.S.T.)

**Grade:**912

**Strand:**Data Analysis and Probability

**Date Adopted or Revised:**08/20

**Status:**State Board Approved

## Related Courses

## Related Access Points

## Related Resources

## Formative Assessments

## Lesson Plan

## MFAS Formative Assessments

Students are asked to use data from a survey to create a two-way frequency table.

Students are asked to use a two-way frequency table to interpret marginal and joint relative frequencies.

Students are asked to construct a two-way frequency table given a set of raw data.

Students are asked to convert raw data to relative frequencies by both rows and columns given a two-way frequency table.

Students are given a two-way frequency table and asked to determine if there is a relationship between the two variables.