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Test your Probabilistic IQ
Flip a coin nine times. Which is more probable?
(a) The result will be 5-4 for any one side of the coin
(b) The result will NOT be 5-4 for any one side of the coin
(c) It's about 50% - 50%

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We created a short multiple-choice questionnaire to measure the accuracy of people's probabilistic intuition. No matter what's your academic background, chances are you 'll enjoy the dilemmas presented in the test. You 'll also have a chance to see how your probabilistic fast thinking compares to the average of all respondents.


​Take the test


And after you 're done, you may want to check our post with the analysis of the results: One Question to Rule them All
"The global success of a number of bets is the only criterion of the value of a probability judgement." Emile Borel, 1925.
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