When to use permutations and when to use combinations.

if the word distinct is present in the question does that mean it refers to permutations?

@gregmat If you could please help.

When to use permutations and when to use combinations.

if the word distinct is present in the question does that mean it refers to permutations?

@gregmat If you could please help.

The main thing is whether order matters or not. The word “distinct” is not necessarily sufficient to determine whether to use combinations or permutations.

If you go to PrepSwift and watch the following sequence of videos, particularly the last one, I think you’ll have a better understanding of when to use each one:

Thank you so much Greg

You likely already have delved into the videos provided.

Combinations can be thought of as subgroups (taking from a larger group and creating a smaller group –– finding how many smaller groups out of the larger group you can make).

Permutations means that you are finding how many unique ways you can arrange (display, order, rank, organize) items.

Thank you.

Do you mind checking this for me, thanks in advance