Quote:
Originally Posted by dreams
Does this make the 1 / 7?
B (Tues) B (Tues) twins
B (Tues) B (Mon)
B (Tues) B (Wed)
B (Tues) B (Thurs)
B (Tues) B (Fri)
B (Tues) B (Sat)
B (Tues) B (Sun)
I probably shouldn't try to think so late at night.  |
You're making the same kind of mistake as those that think that the probability of having two boys when having two children is 1 in 3 because there are three combinations - BB BG and GG.
Let's used TB for a boy born on Tuesday ("Tuesday Boy") and OB for a boy born on another day ("Other Boy").
You've considered
TB TB and TB OB but you've neglected OB TB.
Oh - and TB TB don't have to be twins - they could both be born on a Tuesday, just different Tuesdays (in different years, usually!).