Answer in Statistics and Probability for Annlia #89316
January 24th, 2023
For any chick, there is a 0.5 chance that the one on its right won’t peck it, and a 0.5
chance that the one on its left won’t peck it. So overall, it has a 0.5*0.5=0.25 chance of not being pecked.
Thus, we expect that among 100 chicks 25 will be unpecked.