In how many ways can 12 people be chosen from a group of 20?

Last updated: 8/6/2022

In how many ways can 12 people be chosen from a group of 20? (in this example, repetition not allowed because you can't choose the same person twice, and order doesn't matter because when you group people, the order in which you chose them is not important. They are all part of the same group.) Show your work.