Large numbers in a raffle
Question
Suppose you enter a raffle held every weekday with just 200 tickets. You are only permitted to buy 1 ticket in each draw. Given this information, if you buy 200 tickets over 200 weekdays, what do you expect are your chances of winning at least one of the raffles?
Hint: take some time to think about this one, it's not as straightforward as it might seem at first