Probability Tester
Prob of n=1: 1.0
Prob of n=2: 0.9972602739726028
Prob of n=3: 0.9917958341152187
Prob of n=4: 0.9836440875334497
Prob of n=5: 0.9728644263002064
Prob of n=6: 0.9595375163508885
Prob of n=7: 0.9437642969040246
Prob of n=8: 0.925664707648331
Prob of n=9: 0.9053761661108333
Prob of n=10: 0.8830518222889223
Prob of n=11: 0.858858621678267
Prob of n=12: 0.8329752111619356
Prob of n=13: 0.8055897247675706
Prob of n=14: 0.776897487995027
Prob of n=15: 0.7470986802363137
Prob of n=16: 0.7163959947471501
Prob of n=17: 0.6849923347034393
Prob of n=18: 0.6530885821282106
Prob of n=19: 0.6208814739684633
Prob of n=20: 0.5885616164194201
Prob of n=21: 0.5563116648347942
Prob of n=22: 0.5243046923374499
Prob of n=23: 0.4927027656760146
23 is our magic number!***********

It takes 23 people.

Congrats, we’ve understood how to solve a classic problem,
and learned how to use essential tools to understand probability in our world!