Wednesday, July 22, 2009

Fair experiment with unfair coin!

The puzzle is simple to state: You are given a biased coin with 60% chance for getting heads and 40% chance of getting tails while tossing. Design an experiment with two equally likely outcomes using the coin.

2 comments:

k v said...

A minimum of two coin tosses required for the estimation. Here is how:

HT - corresponds to event A - prob 0.24
TH - corresponds to event B - prob 0.24

TT or HH - event C - prob 0.52

in case of event C, toss the coin two times again... keep doing so, until you get either event A or B

Please confirm if my solution is correct

Lavanya said...

Yes, you are right; Congratulations