How to Read and Interpret a Two-Way Table

The video tutorial addresses a standardized math test question involving two-way tables. It is divided into four parts, each focusing on different aspects of the data collected by Ethan from a survey about siblings and dog ownership. Part A calculates the total number of students with no siblings. Part B finds the percentage of these students who have dogs. Part C determines the ratio of students with siblings to those without among students who don't have dogs. Part D analyzes whether the data supports Ethan's belief that students with no siblings are more likely to have dogs. The tutorial concludes with a summary of findings.

How many students in total reported having no brothers or sisters?

• 40

• 60

• 25

• 15

What percentage of students with no siblings have a dog?

• 80%

• 75%

• 50%

• 62.5%

What is the simplified ratio of students with siblings to those without, among students who do not have a dog?

• 10:3

• 15:5

• 16:3

• 8:3

According to the data, what percentage of students with siblings have a dog?

• 42.9%

• 50%

• 62.5%

• 70%

Does the data support Ethan's belief that students with no siblings are more likely to have a dog?

• Yes, because 50% is greater than 42.9%

• No, because 62.5% is less than 42.9%

• No, because 42.9% is greater than 62.5%

• Yes, because 62.5% is greater than 42.9%