Bar graphs are used to graph frequencies or amounts of data in discrete groups.
For example.... look at this bar graph below!
.)A graph consisting of parallel, usually vertical bars or rectangles with lengths proportional to the frequency with which specified quantities occur in a set of data. Also called bar chart
A bar graph shows discreet data, but other types can also.
A pie chart :) or a bar graph.
It all depends on what kind of bar graph your're making, and also for what data your putting on it !
a bar graph shows the amount in your research
You use it when you are comparing data.
to show the result of data
show distribution of data.
anything you want to put in a bar graph
A bar graph is a chart that uses either horizontal or vertical bars to show comparisons among categories. One axis of the chart shows the specific categories being compared, and the other axis represents a discrete value.
Bar graphs show an '''amount''' of data. Line graphs show data '''over time.''' Pie graphs show a '''percentage''' in the data.
they both use bars to show data and show ranges of data aswell.