Bar Graphs & Histograms

Front

What is a bar graph?

Back

A bar graph is a visual representation of data using rectangular bars to show the quantity of different categories.

Front

What is a histogram?

Back

A histogram is a type of bar graph that represents the frequency distribution of numerical data, where the bars touch each other to indicate continuous data.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height or length of the bars to compare the quantities of different categories.

Front

What does the x-axis represent in a bar graph?

Back

The x-axis typically represents the categories being compared.

Front

What does the y-axis represent in a bar graph?

Back

The y-axis represents the quantity or frequency of the categories.

Front

What is the purpose of a histogram?

Back

The purpose of a histogram is to show the distribution of data points across different intervals or ranges.

Front

How do you determine the interval with the greatest frequency in a histogram?

Back

To determine the interval with the greatest frequency, look for the tallest bar in the histogram.

Front

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

Back

A bar graph displays categorical data with separate bars, while a histogram displays continuous data with adjacent bars.

Front

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

Back

To find the total number of items, add the values represented by each bar.

Front

What is an interval in a histogram?

Back

An interval in a histogram is a range of values that groups data points together.