>>14401997>normal 1st flip, then fudge the 2nd flip50% 1st coin heads: 50% 2nd coin heads/tails.
50% 1st coin tails: 100% 2nd coin heads
25% HH, 25% HT, 50% TH
>normal flips, then in the case TT, flip to determine which coin is made heads50% 1st coin heads: 50% 2nd coin heads/tails.
50% 1st coin tails: 50% 2nd coin heads/tails
In the case TT: 50% 1st/2nd coin is made H (In 25% of cases, both 1st and 2nd have a 50% chance of being heads, 12.5%)
37.5% TH, 37.5% HT, 25% HH
>Flip normally, in the case of TT discard the result and flip again.50% 1st coin heads: 50% 2nd coin heads/tails.
50% 1st coin tails: 50% 2nd coin heads/tails
25% HT, 25% TH, 25% HH, 25% TT, but we reflip in the case of TT, so it's adjusted to:
33% HT, 33% TH, 33% HH
tl;dr the problem is ambiguously stated
