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SUBMIT YOUR IDEASolution attached
My Effort
I spent a lot of time building a macro that ultimately didn't work, then I decided that I could do this within a workflow if I used a join on iteration number and sample size rather than appending records then filtering. I got it running in 2 minutes for 10,000 iterations (to get a nice smooth curve) 🙂
Although the challenge says something along the lines of "create a population of 100,000 people, then do the tests sampling from that population" (and I tried that with batch+iterative, taking a looong time) I went with not really "sampling" the population but just creating a new people for each row...should provide similar answers.