Comment by sporkland
2 hours ago
I was doubting this for a minute as I wondered with a significantly biased coin towards the head side would you be more likely to get HT. With probability problems like Monty Hall I like to think about extreme cases like say it's 99 heads to every 1 tails. You'd expect HT 0.99% of the time. Ditto TH.
You can’t flip coins until you get the first different outcome… You have to flip twice each time, until you get a pair with different outcomes.