Exploring Two-Way Tables in Statistics

This video tutorial covers the concept of two-way tables and relative frequency. It explains how to fill out two-way tables, calculate relative frequencies, and convert them into percentages. The tutorial provides step-by-step instructions and examples, including a practical application involving eighth graders' preferences for curfews and bedtimes. The video aims to help students understand data analysis using two-way tables and how to interpret the results effectively.

Purpose of a two-way table?

• Represent data linearly

• Compare two groups without categories

• Show data for different groups in multiple categories

• Calculate total outcomes

Representation of relative frequency?

• Decimal

• Percentage

• Whole number

• Both A and B

Grade with math as most popular core subject?

• 9th grade

• 8th grade

• 7th grade

• All grades equally

Total students surveyed?

• 157

• 200

• 584

• 128

Most popular subject among 9th graders?

• History

• Language Arts

• Science

• Math

Relative frequency of 7th graders preferring history?

• 63%

• 40%

• 32%

• 25%

Relative frequency of 8th graders preferring math?

• 25%

• 60%

• 32%

• 41%

Percentage of 8th graders with set bedtime?

• 25%

• 80%

• 63%

• 60%

Among no curfew students, % without set bedtime?

• 40%

• 20%

• 60%

• 80%

Number of 8th graders surveyed on curfews and bedtimes?

• 25

• 16

• 40

• 24