1) do two coin tosses :

head , head --> 1st dessert
head , tail ---> 2nd dessert
tail , head ---> 3rd dessert

if coin is biased... you can do in three coin tosses :
tail , head , head --> 1st dessert
head, tail , head --> 2nd dessert
head, head , tail --> 3rd dessert

2) sqrt(9+16+25) = 5sqrt(2)

-swayambhoo

On Fri, Dec 31, 2010 at 4:41 AM, bittu <shashank7andr...@gmail.com> wrote:

> At a restaurant, how can Veronica choose one out of three desserts
> with equal probability with the help of a coin? What if the coin is
> biased and the bias is unknown?
>
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-- 
Swayambhoo jain,
Graduate Student, MSEE
Electrical and Computer Engineering Dept.
University of Minnesota, Twin Cities

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