Two-Way Relative Frequency Tables

Front

What is a Two-Way Relative Frequency Table?

Back

A Two-Way Relative Frequency Table displays the relative frequencies of two categorical variables, showing how often each combination of categories occurs in relation to the total.

Tags

CCSS.8.SP.A.4

Front

How do you calculate relative frequency?

Back

Relative frequency is calculated by dividing the frequency of a specific category by the total frequency of all categories.

Tags

CCSS.8.SP.A.4

Front

What does a relative frequency of 29% indicate?

Back

It indicates that 29% of the total surveyed population falls into the specified category, such as boys who cannot bike to school.

Tags

CCSS.8.SP.A.4

Front

What is the purpose of using a Two-Way Relative Frequency Table?

Back

It helps to analyze the relationship between two categorical variables and understand how they interact with each other.

Tags

CCSS.8.SP.A.4

Front

If 100 students were surveyed and 29 cannot bike to school, what is the relative frequency of boys among them?

Back

The relative frequency is 29%, meaning 29 out of 100 students cannot bike to school.

Tags

CCSS.8.SP.A.4

Front

What does it mean if 16.5% of the surveyed population are electrical engineers who like math?

Back

It means that out of the total surveyed population, 16.5% are both electrical engineers and have an interest in math.

Front

How can you interpret a relative frequency of 27.2% for people who play an instrument but do not play a team sport?

Back

This means that 27.2% of the surveyed population who play an instrument do not participate in team sports.

Tags

CCSS.8.SP.A.4

Front

What is the significance of a relative frequency of about 67% for students ages 14-17 who skip breakfast?

Back

It indicates that a significant majority of students in that age group skip breakfast.

Tags

CCSS.8.SP.A.4

Front

How do you find the percentage of a specific lunch order in a Two-Way Relative Frequency Table?

Back

You divide the number of that specific lunch order by the total number of lunch orders and multiply by 100.

Tags

CCSS.8.SP.A.4

Front

What does a relative frequency of 61% for sandwiches indicate?

Back

It indicates that 61% of all lunch orders were for sandwiches.

Tags

CCSS.8.SP.A.4