Venn Diagrams and Two-Way Tables Flashcard

Front

What is a Venn diagram?

Back

A Venn diagram is a visual representation of the relationships between different sets, using overlapping circles to show commonalities and differences.

Front

What does the intersection of two sets in a Venn diagram represent?

Back

The intersection of two sets represents the elements that are common to both sets.

Front

How do you determine the number of elements in a set using a Venn diagram?

Back

Count the total number of elements in the circles, including those in the intersections, and subtract any elements that are outside the sets.

Front

What is a two-way table?

Back

A two-way table is a data display that organizes data based on two categorical variables, allowing for easy comparison.

Front

How can you find the total number of respondents in a survey using a two-way table?

Back

Add the totals from each row or column in the two-way table.

Front

What does 'p and q' mean in the context of a Venn diagram?

Back

'p and q' refers to the elements that belong to both set p and set q.

Front

What does 'not p' mean in a Venn diagram?

Back

'Not p' refers to the elements that do not belong to set p.

Front

How do you calculate the number of elements in 'p or q'?

Back

To find 'p or q', add the number of elements in set p and set q, then subtract the number of elements in the intersection (p and q).

Front

What is the purpose of shading in a Venn diagram?

Back

Shading in a Venn diagram indicates the specific area of interest, such as the elements that meet certain criteria.

Front

How can you use a two-way table to answer a question about a specific group?

Back

Locate the relevant row and column in the two-way table to find the count of the specific group.