Brainteaser iconBrainteaser - Happy Meal 2

Happy Meal 2
Probability
Optiver, Jane Street
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xxxxx xxxxx xxxx xx xxxxxxxx'x xxxxxxxx xxx xxx xxxx x xxxxx xx \( x \) xxxxxxxx xxxx. xxxx xxx xx xxxxxxx xxxxxx xx xx xxxxxxxx xxx xx xxxxxxxx xxxxxxxxxxx xxxx xxx xxxxxx. xx xxx xxxxxxxx \( x \) xxxxx xxxxx, xxx xxxx xxxxxxxx xxxx xxx xxx xxxxxx xx xxxxxxx?

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