Monty Hall problem: Difference between revisions
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m (→version 2: added a comment regarding the door values (goat or car). -- ~~~~) |
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#the doors reveal 2 goats and a car |
#the doors reveal 2 goats and a car |
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doors = [ :goat |
doors = [ :goat, :goat, :car ].shuffle |
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doors[rand(3)] = :car |
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#random guess |
#random guess |
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begin shown = rand(3) end while shown == guess || doors[shown] == :car |
begin shown = rand(3) end while shown == guess || doors[shown] == :car |
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if doors[guess] == :car |
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#staying with the initial guess wins if the initial guess is the car |
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stay += 1 |
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else |
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#switching guesses wins if the unshown door is the car |
#switching guesses wins if the unshown door is the car |
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switch += 1 if doors[3-guess-shown] == :car |
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switch += 1 |
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end |
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end |
end |
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<pre>Staying wins 33.84% of the time. |
<pre>Staying wins 33.84% of the time. |
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Switching wins 66.16% of the time.</pre> |
Switching wins 66.16% of the time.</pre> |
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=={{header|Run BASIC}}== |
=={{header|Run BASIC}}== |
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<lang runbasic>' adapted from BASIC solution |
<lang runbasic>' adapted from BASIC solution |
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