http://kalvado.livejournal.com/ ([identity profile] kalvado.livejournal.com) wrote in [personal profile] green_fr 2007-08-18 05:51 pm (UTC)

2 varianta, a i b, veroyatnosti 1/3 i 2/3
v 2 popytkah:
aa -ignore 1/9
ab - 2/9
ba- 2/9
bb - ignore 4/9
itogo a - polovina, b - polovina
(50 comments)

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