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Bridge Winners Profile for Richard Fedrick

Richard Fedrick
Richard Fedrick
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Basic Information

Member Since
Jan. 24, 2012
Last Seen
3 hours ago
Member Type
Bridge Player
about me

I'm based in the UK, playing as much bridge as family and work permit, which isn't much. Having trodden the well-worn path from theoretical physics to Wall Street, I now (in what passes for semi-retirement) teach and consult on mathematical finance and derivatives.

Country
United Kingdom

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How well do you understand restricted choice?
Ha! Good nitpick. As it happens the existence of that Zimmerman fellow (whom I had heard discussing a certain Mr Jones the previous evening, in Philadelphia) was germane to the wording of the original post.
Question for Accountants (of benefit to Pros)
OK Tomasz, I'll bite. Point me to the history books that you are referring to and I will go and check as you suggest. The history books that refer to the existence of state-funded emergency fire services, on-demand ambulance services and public hospitals (free at the point of use ...
How well do you understand restricted choice?
Charles, does your definition differ in any significant way from David’s (I paraphrase: probability is the price of a fair - aka zero expectation value of payoff - bet on some future outcome)? This is not a rhetorical question, I’m genuinely interested (I’m not a probabilist).
Question for Accountants (of benefit to Pros)
‘Too much taxes’ Tomasz? I think Frances was referring to the funding source that gives us ambulance services, schools, hospitals and pot-hole free motorways. Despicable bureaucracy, all of it.
How well do you understand restricted choice?
Charles, I'm sure you're right (i.e. I have no idea) about how the actual 1950s TV-show was set up. But as far as thought-experiment-MH is concerned, it undoubtedly assumes that the host will open one of the losing doors... because any other procedure is pointless (he opens ...
How well do you understand restricted choice?
No. I understand the problem fine. The fact that the gameshow host opens a door is part of the rules of the game. It is not additional, exogenous information. When you are planning the play as declarer, do you take careful consideration of the fact that bridge is a game ...
How well do you understand restricted choice?
That's incorrect. You don't need to "know" or "assume" he will always open a worthless door - it's the gameshow host's only rational action (opening the winning door gives you a free arb). In the same spirit, we don't need to "assume" that a defender with ...
How well do you understand restricted choice?
"I have a boy born on a Monday" is not the same as "I have a boy born on a particular day of the week". The first has more informational content and therefore affects the calculation. In bridge language: if RHO opens 1H and LHO bids 3S ("heart fit and ...
How well do you understand restricted choice?
Very nice and clear answer from Paul. My solution, as I was killing time at the airport was this. We can pretend there are three genders: boy-with-some-characteristic-Q, boy-not-Q, and girl. The respective probabilities of each are q/2, (1-q)/2, 1/2 Then it’s just like throwing an asymmetric ...
How well do you understand restricted choice?
Are you a cosmologist by any chance?
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