Differince between the factorial design and factorial experiment?

A design for an experiment that allows the experimenter to find out the effect levels of each factor on levels of all the other factors.   Probably the easiest way to begin understanding...

A factorial is when a number has an exlamation point after it so it represents all the positive integers leading up to that number then you multiply to solve the factorial. For example: 6! = 6 X 5 X...

You first look at the number that is before the !(factorial sign). Then you times all positive intergers (which means it doesn't include 0), including the number itself. The answer is the factorial...

imp enough to have an effect on sth

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