Obvious, just confusing, or problematic? ... continued
Before answering this question, please take a look at the previous story: Obvious, just confusing, or problematic?
Since the couple from the previous story doesn't get any additional children any more, the strange man continues tossing a fair coin every now and then, just like that. After he has flipped 2 coins that way he tells us that at least 1 of them was head side up and was tossed on a tuesday. What is the probability (from our point of view) that both coins showed heads?
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1 solution
The purpose of the 2 questions is to help you getting a better intuitive understanding of the famous tuesday boy paradox, that is to say, how to interprete the definition of the paradox in order to get the 2 7 1 3 result, and to realize the nuances versus common coin flipping. By trying to switch your interpretion over and over again between the 1st and 2nd question and common coin flipping something might perhaps get more and more clear.