This is twisting my brain a bit -- there's a third possible version, where the only info you have is the day of week. Something like "i have a child, one of whom was born on tuesday. what are the odds the other is a boy?" perhaps.
And the answer there has to be basically 50:50. So when you combine these two filters, day of week wins somehow. Will have to ponder more
And the answer there has to be basically 50:50. So when you combine these two filters, day of week wins somehow. Will have to ponder more