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Three Cards
Probability
Optiver
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xxx xxxx xxxxx xxxxx, xxxx xxxxxxx \( x \), \( x+x \), \( x+x \), xxx xxx xxx'x xxxx xxx xxxxx xx \( x \). xxx xxxxx xxxxx xxxx xxxx. xxx xxxx xxx xxxx xxx xxxxxxx xxx xxxxx. xx xxx xxx "xxxx", xxxx xxxxxx xx xxxxx xx xxxx xxxx'x xxxxx. xx xxx xxx'x "xxxx", xxxx xxx xxxx xxxxxxx xxxx. xxxxx, xxxxxx xx "xxxx" (xxx xxxxxxx x xxxxxx xxxxx xx xxx xxxxxx xxxx'x xxxxx) xx xxxx xxx xxxxx xxxx xxx xxxxxxx x xxxxxx xxxxx xx xxx xxxxx xxxx'x xxxxx. xxxx xx xxx xxxxxxx xxxxxxxx xxx xxxx xxxx, xxx xxxx xx xxx xxxxxxxx xxxxxx xx xxxx xxxxxxxx, xxxxxxxxx xx \( x + x \) xxx xxxx xxxxxxxx \( x \)?

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