Probability

Keep or Pass

Difficulty
xxx xxx xxx xxxx x xxxx, xxxx xxx xxxxx xxxxx. xx xxxx xxxx, xxx xxxxxx xxxxx x xxxxxx xxxxxxxxxxxxx xxx xxxxxxxxx xxxx \([-xx,xx]\), xxxx xxxxxx xxxxx xx xx xxxxxx. xxxxxxx x xxxxxx xxxx xxx xxxx: xxx xxxxx xxxxxx xxxx xxxx xxxx xxxxxx, xxxx x xxxxxxxx xxxxxx xxxxxxxxx xxx xxxxxxx. xxxxxxx xxxxx xxx xxxxx xxxxxx xxx xxxx xxxx. xx xxxx xxxxxxx xxxxxxxx xxxxx xxxxxxxx xxxxxx, xxxx xx xxxx xxxxxxxx xxx xxxxxx?

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