Probability

Guessing a Sample's Rank

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

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