Friday Quiz Question: Card Tricks and Market Risk

Ace_playing_cards The following is from Paul Wilmott:

You are in the audience at a small, intimate theatre, watching a magic show. The magician hands a pack of cards to a random member of the audience, asks him to check that it’s an ordinary pack, and would he please give it a shuffle. The magician turns to another member of the audience and asks her to name a card at random. "Ace of Hearts," she says. The magician covers his eyes, reaches out to the pack of cards, and after some fumbling around he pulls out a card.

The question to you is what is the probability of the card being the Ace of Hearts?

Without going to read Paul’s post on how this relates to risk management in markets, what is your answer?

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