Check this out

Thanks Log

I will look over this.

The big difference between combinations and permutations is that permutations have a specific order to them and combinations don't.

If I want a subcommitee of 3 out of a group of 5 (a,b,c,d,e), this is a combination - a,b,c is the same as b,a,c is the same as c,a,b and they all represent just a single choice.

If there is order involved, then it is a permutation. If I am going to pick the president, then VP then Sec of State from the group of 5 (a,b,c,d,e) then
a= pres, b=vp, c=SoS is NOT the same as b=pres, a=VP, c=SoS and also not the same as c=pres, a=vp, b = SoS (just ask Hillary if SoS is the same as Pres). Therefore each group (abc, bac, cab) represents a separate choice and must be counted as 3 of the options (not 1 option as above). So permutations will have more options than combinations.

Some words that point out permutations include: arranged, arrangements, ordered, respectively, and any sort of directional instructions like "left to right."

Hope that helps.

-Carrie