A comparison in math terms is when you see if two problems are equal to each other.
"Or" is usually placed between two questions or answers in math when a comparison is involved.
A degree of correspondence or comparison between two math values.
you say: i wonder if ------- is -------- than -------------....... or something like that
it is something that changes
the control group
Inter-firm comparison is where you compare your particular firm or business to that of another business who are in a similar situation