6.1 & 6.4
If I wanted to split these problems into generations of choice, what would be my generations?
tiffanyju: Jan. 30, 2015, 1:08 a.m.
I think for 6.1 you don't even need to use generations of choice...you're essentially trying to find how many ways you can choose 5 green balls out of the 12 balls, so it would just be 12 choose 5.
weisbart: Feb. 1, 2015, 11:05 a.m.
You could, if you want, use a fake ordering, then use generations of choices, and then deorder. That's how you get the $12\choose 5$ in the first place. But, if you know how to get the unordered choices, then you can do it in a single generation immediately. The formalism is really just meant to help when the way is unclear.