Analyzing Bar Graphs and Circle Graphs

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using bars of different heights or lengths to compare quantities across categories.

Front

What is a circle graph (pie chart)?

Back

A circle graph, or pie chart, is a circular statistical graphic divided into slices to illustrate numerical proportions.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height or length of the bars to determine the value they represent for each category.

Front

What does the height of a bar in a bar graph represent?

Back

The height of a bar represents the quantity or frequency of the data for that specific category.

Front

How do you find the total number of items represented in a bar graph?

Back

To find the total, add the values represented by all the bars in the graph.

Front

What is the purpose of a circle graph?

Back

The purpose of a circle graph is to show how a whole is divided into different parts, illustrating the relative sizes of each part.

Front

How do you determine the percentage of each category in a circle graph?

Back

To determine the percentage, divide the value of each category by the total value and multiply by 100.

Front

What is the difference between a bar graph and a circle graph?

Back

A bar graph compares quantities across categories using bars, while a circle graph shows parts of a whole using slices.

Front

What type of data is best represented by a bar graph?

Back

Bar graphs are best for comparing discrete categories or groups.

Front

What type of data is best represented by a circle graph?

Back

Circle graphs are best for showing the composition of a whole, such as percentages of a total.