They are essential by definition. It is not possible to have a bar graph with no bars!
bar graphs use bars and pictographs use pictures
No! Bar and line graphs are different bar graphs show bars and line graph shows lines.
the bars normally do not touch each other.
In a bar graph, the height of the bars is relative to the frequency. In a histogram, the area of the bars is relative to the frequency. Because it deals with area, the label on the y-axis is "frequency density" rather than just "frequency"
they both use bars to show data and show ranges of data aswell.
error bar can be drawn for statistical comparison of bars and graphs.
bar graphs use bars and pictographs use pictures
error bar
error bar
No! Bar and line graphs are different bar graphs show bars and line graph shows lines.
error bar
bar graphs are for measuring points of data.
error bar
pictographs have pictures bar graphs have bars
Dual bar charts, or double bar graphs, are just like regular bar graphs, except there are two bars for each value on the x-axis.
no,a bar graph is not a pictograph,pictograph's represent data by pictures and bar graphs by bars...
the bars normally do not touch each other.