a histrogram
Every graph shows comparisons of some kind or another.
A histogram.
Histogram
Yes, it usually shows the relationships between several dependent variables and one independent.
a histogram
a graph law graph shows the relationship between pressure and volume
yes
A graph refers to a diagram that shows the relation between variable quantities. Bar graphs are often used to show statistical comparisons because they show the relevant data side by side.
a pie graph shows percentages and a bar graph shows numbers and amounts
The answer depends on what the comparisons are. A bar graph and a pie chart will probably do well.
A graph of Charles Law shows the relationship between temperature and volume of gas.
It could be a bar graph or a frequency polygon. Or, if the intervals are of different sizes, a histogram.