Two-Way Tables

Front

What is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of two categorical variables. It allows for the comparison of the relationship between the two variables.

Tags

CCSS.8.SP.A.4

Front

How do you read a two-way table?

Back

To read a two-way table, locate the row and column that correspond to the categories of interest, and find the intersection to see the frequency or count.

Tags

CCSS.8.SP.A.4

Front

What does the term 'marginal frequency' mean in a two-way table?

Back

Marginal frequency refers to the totals found in the margins (the last row and column) of a two-way table, showing the total counts for each category.

Tags

CCSS.8.SP.A.4

Front

What is 'joint frequency' in a two-way table?

Back

Joint frequency is the count of occurrences for a specific combination of categories from the two variables in a two-way table.

Tags

CCSS.8.SP.A.4

Front

What is the purpose of a two-way table?

Back

The purpose of a two-way table is to organize data to analyze the relationship between two categorical variables and to identify patterns or trends.

Tags

CCSS.8.SP.A.4

Front

How can you calculate the total number of observations in a two-way table?

Back

To calculate the total number of observations, sum all the joint frequencies in the table.

Tags

CCSS.6.SP.B.5A

Front

What is a conditional frequency in a two-way table?

Back

Conditional frequency is the frequency of a specific category of one variable given a category of another variable, often expressed as a fraction or percentage.

Tags

CCSS.8.SP.A.4

Front

How do you find the probability of an event using a two-way table?

Back

To find the probability of an event, divide the joint frequency of the event by the total number of observations in the table.

Tags

CCSS.8.SP.A.4

Front

What is the significance of the totals in the margins of a two-way table?

Back

The totals in the margins provide a quick summary of the data, showing the overall counts for each category and helping to understand the distribution.

Tags

CCSS.8.SP.A.4

Front

How can two-way tables help in making predictions?

Back

Two-way tables can help in making predictions by analyzing the relationship between variables and identifying trends that can inform future outcomes.

Tags

CCSS.8.SP.A.4