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View Diary: Morning feature: The Monty Hall problem (with poll and statistics questions answered) (310 comments)

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    plf515, milkbone

    The possible genders of her children in 1 are FF, FM, MF, MM.  The first one isn't possible, so the last three cases are left (and all equally likely).  In only one of those three cases are both children boys, so the odds are 1/3.

    In 2 the possible choices are only MM and MF since you know the first one is M, so it's 1/2.

    Yes, there are progressives in the rural South. 50 States.

    by Racht on Tue May 05, 2009 at 08:14:06 AM PDT

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