# Bar Graphs

Stylish and Formal Bar Graphs. Dictionaries define bar graphs as “a diagram that uses proportional-width bars to compare data among categories.” It is a good way of presenting data in an organized and intellectual manner. How are we explorers of the world? Grade 3 [email protected] Blogger 39 1 25 tag:blogger.com,1999:blog. Bar graphs are useful for viewing results over a period of time, comparing results from different data sets, and showing how individual elements contribute to an aggregate amount. By default, bar graphs represents each element in a vector or matrix as one bar, such that the bar height is proportional to the element value. Raise the bar on math lessons with our bar graph worksheets. From ice cream preferences to pet ownership, these bar graph worksheets feature relatable topics that will keep kids engaged. There are also opportunities for kids to read short stories, assess data, and create bar graphs with step-by-step instructional support. A bar graph (or bar chart) displays data using rectangular bars. One axis of a bar chart measures a value, while the other axis lists variables. When the data is plotted, the chart presents a comparison of the variables. Showcase Data with Adobe Spark's Bar Chart Maker.

• ### Simple Bar Graph

• Here the Factory is our independent variable, since there is no unit of measurement for factories and no 'order' to the factories, the independent variable is nominal. The dependent variable is scalar, measured in defects/1,000 cars. Since the scalar dependent variable has a natural zero point (i.e., absolute or ratio), all of the bars are anchored to the horizontal axis, giving a common point of measurement.

• ### Horizontal Bar Graph

• Bar graphs can be shown with the dependent variable on the horizontal scale. This type of bar graph is typically referred to as a horizontal bar graph. Otherwise the layout is similar to the vertical bar graph. Note in the example above, that when you have well-defined zero point (ratio and absolute values) and both positive and negative values, you can place your vertical (independent variable) axis at the zero value of the dependent variable scale. The negative and positive bars are clearly differentiated from each other both in terms of the direction they point and their color.   • ### Range Bar Graph

• Range bar graphs represents the dependent variable as interval data. The bars rather than starting at a common zero point, begin at first dependent variable value for that particular bar. Just as with simple bar graphs, range bar graphs can be either horizontal or vertical. Notice in the horizontal example above, a reference line is used to indicate a common key dependent variable value.

• ### Histogram

• Histograms are similar to simple bar graphs except that each bar represents a range of independent variable values rather than just a single value. What makes this different from a regular bar graph is that each bar represents a summary of data rather than an independent value. For this type of graph, the dependent variable is almost always a scalar scale representing the count, or number, of how many of a sample fall within each range of the independent variable. In the example above, the sample is all the females in the U.S. The independent variable is age, which as been grouped into ranges of 5 years each. You should try and keep the ranges for each bar uniform (5 years in this case), with the exception possibly being the first and/or last range.

A Bar Graph (also called Bar Chart) is a graphical display of data using bars of different heights.

## Line Graphs

Imagine you just did a survey of your friends to find which kind of movie they liked best: Journal.  Comedy Action Romance Drama SciFi Table: Favorite Type of Movie 4 5 6 1 4

We can show that on a bar graph like this:

## Bar Graphs For Kids

It is a really good way to show relative sizes: we can see which types of movie are most liked, and which are least liked, at a glance.

We can use bar graphs to show the relative sizes of many things, such as what type of car people have, how many customers a shop has on different days and so on.

### Example: Nicest Fruit

A survey of 145 people asked them 'Which is the nicest fruit?':

 Fruit: Apple Orange Banana Kiwifruit Blueberry Grapes People: 35 30 10 25 40 5

And here is the bar graph:

## Bar Graphs Worksheets

That group of people think Blueberries are the nicest.

Bar Graphs can also be Horizontal, like this:

## What Is A Bar Graphs

In a recent test, this many students got these grades:

 Grade: A B C D Students: 4 12 10 2

And here is the bar graph:

You can create graphs like that using our Data Graphs (Bar, Line, Dot, Pie, Histogram) page.

## Histograms vs Bar Graphs

Bar Graphs are good when your data is in categories (such as 'Comedy', 'Drama', etc).

But when you have continuous data(such as a person's height) then use a Histogram.

It is best to leave gaps between the bars of a Bar Graph, so it doesn't look like a Histogram.