Bar Graphs, Circle Graphs, and Dot Plots

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

What is a dot plot?

Back

A dot plot is a simple statistical chart that consists of dots plotted on a number line, representing the frequency of data points.

Front

How do you find the mean of a data set?

Back

To find the mean, add all the numbers in the data set and then divide by the total number of values.

Front

What is the median of a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

Can a data set have more than one median?

Back

False. A data set can only have one median.

Front

What does it mean if a bar graph has a taller bar?

Back

A taller bar indicates a greater quantity or frequency for that category compared to others.

Front

How can you determine the most popular choice from a circle graph?

Back

The slice with the largest angle or percentage represents the most popular choice.

Front

What is the purpose of using a dot plot?

Back

Dot plots are used to display small sets of data and to show the frequency of data points.

Front

What does it mean if two categories in a bar graph have the same height?

Back

It means that both categories have the same quantity or frequency.