# Histogram vs. Bar Graph: What's the Difference?

Edited by Sumera Saeed || By Sara Rehman || Published on November 27, 2023
A histogram is a graphical representation of data distribution using contiguous bars, while a bar graph displays categorical data with separate bars.

## Key Differences

Histograms are used to show the distribution of a numerical dataset, indicating the frequency of data within certain ranges. Bar graphs, in contrast, represent categorical data, with each bar representing a different category.
Sara Rehman
Nov 27, 2023
In a histogram, bars are adjacent, touching each other to indicate continuous data ranges. Meanwhile, in a bar graph, bars are separate, emphasizing the distinctiveness of each category.
Sara Rehman
Nov 27, 2023
Histograms often deal with large data sets and are useful in statistical analysis, showing trends over a range of values. While, bar graphs are more suited for comparing discrete quantities or categories, such as survey results.
Sumera Saeed
Nov 27, 2023
The height of bars in a histogram reflects the frequency of data in each interval. However, in a bar graph, the height or length of each bar corresponds to the value or count of the category it represents.
Harlon Moss
Nov 27, 2023
Histograms are typically used for data like measurements or intervals, where the data falls into natural ranges. Whereas, bar graphs are used for data that can be divided into separate categories, like brands, types, or groups.
Harlon Moss
Nov 27, 2023

## Comparison Chart

### Data Type

Numerical, showing distribution
Categorical
Sara Rehman
Nov 27, 2023

### Bar Placement

Contiguous, bars touch each other
Separate, bars do not touch
Sara Rehman
Nov 27, 2023

### Purpose

Shows frequency distribution
Compares different categories
Sara Rehman
Nov 27, 2023

### Bar Height

Represents frequency in each range
Indicates value or count of a category
Aimie Carlson
Nov 27, 2023

### Common Use

Statistical analysis, data intervals
Discrete data comparison, surveys
Aimie Carlson
Nov 27, 2023

## Histogram and Bar Graph Definitions

#### Histogram

Bars touch each other to indicate continuous intervals.
In the histogram, each bar represented a 10-point score interval.
Sara Rehman
Nov 15, 2023

#### Bar Graph

Bars are separated to emphasize different categories.
In the bar graph, each color represented a different product category.
Sara Rehman
Nov 15, 2023

#### Histogram

Used for continuous data to depict data ranges.
A histogram of temperatures showed the most common ranges during summer.
Aimie Carlson
Nov 15, 2023

#### Bar Graph

Each bar’s height indicates the value or size of the category.
The bar graph clearly displayed the monthly rainfall in various cities.
Sara Rehman
Nov 15, 2023

#### Histogram

A graph showing frequency distribution in contiguous intervals.
The histogram displayed the age distribution of the survey participants.
Janet White
Nov 15, 2023

#### Bar Graph

Often used in business and marketing for data comparison.
The bar graph was effective in showing the quarterly revenue of each department.
Janet White
Nov 15, 2023

#### Histogram

Ideal for visualizing data spread and central tendency.
The histogram helped identify the average height in the population sample.
Sara Rehman
Nov 15, 2023

#### Bar Graph

A chart with bars representing different categories of data.
The bar graph compared sales across different regions.
Sumera Saeed
Nov 15, 2023

#### Histogram

Often used in statistical analysis to reveal data patterns.
The histogram was used to analyze the frequency distribution of the exam scores.
Sumera Saeed
Nov 15, 2023

#### Bar Graph

Useful for comparing discrete or categorical data.
The bar graph showed the favorite sports among students in the school.
Sara Rehman
Nov 15, 2023

#### Histogram

A bar graph of a frequency distribution in which one axis lists each unique value (or range of continuous values) in a set of data, and the area of each bar represents the frequency (or relative frequency) of that value (or range of continuous values).
Sara Rehman
Nov 13, 2023

#### Histogram

(statistics) A graphical display of numerical data in the form of upright bars, with the area of each bar representing frequency.
Sara Rehman
Nov 13, 2023

#### Histogram

(transitive) To represent (data) as a histogram.
Sara Rehman
Nov 13, 2023

#### Histogram

A bar chart representing a frequency distribution; heights of the bars represent observed frequencies
Sara Rehman
Nov 13, 2023

## FAQs

#### Are the bars in a bar graph separated?

Yes, the bars in a bar graph are separated to distinguish different categories.
Aimie Carlson
Nov 27, 2023

#### Can histograms be used for categorical data?

No, histograms are typically used for continuous numerical data.
Sara Rehman
Nov 27, 2023

#### Do bars touch in a histogram?

Yes, bars in a histogram touch each other to indicate continuous data.
Sara Rehman
Nov 27, 2023

#### Can a histogram show data trends?

Yes, histograms are good for showing data trends and distributions.
Janet White
Nov 27, 2023

#### What kind of data is best for a bar graph?

Bar graphs are best for categorical or discrete data.
Sara Rehman
Nov 27, 2023

#### Is a bar graph useful for statistical analysis?

Bar graphs are more for comparison than deep statistical analysis.
Aimie Carlson
Nov 27, 2023

#### What does the height of a bar represent in a histogram?

In a histogram, the height of a bar represents the frequency of data within an interval.
Harlon Moss
Nov 27, 2023

#### What does a bar graph show?

A bar graph shows comparisons among discrete categories.
Sumera Saeed
Nov 27, 2023

#### What is a histogram used for?

A histogram is used to represent the frequency distribution of numerical data.
Sara Rehman
Nov 27, 2023

#### What does the height of a bar in a bar graph indicate?

The height of a bar in a bar graph indicates the value or count of that category.
Janet White
Nov 27, 2023

#### Are bar graphs easy to read?

Yes, bar graphs are generally straightforward and easy to interpret.
Harlon Moss
Nov 27, 2023

#### How is data grouped in a histogram?

In histograms, data is grouped into continuous ranges or intervals.
Janet White
Nov 27, 2023

#### Should histograms be used for ordinal data?

Histograms are not ideal for ordinal data; bar graphs are better suited.
Harlon Moss
Nov 27, 2023

#### Are histograms good for small data sets?

Histograms are better for larger data sets to show distribution patterns.
Janet White
Nov 27, 2023

#### Do histograms require equal interval sizes?

Ideally, histograms should have equal interval sizes for accurate representation.
Sara Rehman
Nov 27, 2023

#### Can bar graphs show time series data?

Bar graphs can show time series data if it’s categorized discretely.
Janet White
Nov 27, 2023

#### Can you compare two different variables with a bar graph?

Yes, bar graphs can compare different variables across categories.
Aimie Carlson
Nov 27, 2023

#### Can you overlay multiple data sets in a histogram?

Overlapping multiple data sets in a histogram can be complex but possible.
Sara Rehman
Nov 27, 2023

#### Are colors important in bar graphs?

Colors can help distinguish different categories or variables in a bar graph.
Aimie Carlson
Nov 27, 2023

#### Can a bar graph show proportional data?

Yes, bar graphs can display proportions within categories.
Janet White
Nov 27, 2023