Probability

Empty Rows and Columns

Difficulty
xx xxxxx \(x\xxxxx x\) xxxx xx xxxxxx xxxx \(xx\) xxxx, xxxx xx xxxx xxx xxx xxx xxxx. xxxxx xxxxxx xx \(xx\) xxxxxxxx xxxxx xx xxxxxxx xxxxxx. xxxx xx xxx xxxxxxxxxxx xxxx xx xxxxx xxx xxx xx xxxxxx xxxxxxxx xx xxxx?

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