Probability

Six Heads and a Mystery Coin

Difficulty
xx x xxxxx, xxxxx xxx xxxx xxxx xxxxx xxx xxx xxxxxxx xxxx xxxx xxxxx xx xxxx xxxxx. xxx xxxxxx x xxxxxx xxxx xxx xxxx xx x xxxxx, xxx xx xxxxx xx xxxxx xxxx xxxx. xx xxx xxxxxxxxxxx xxxx xxx xxxxxxxx xxxx xx xxx xxx-xxxxxx xxx xxxxx xxxxx xxxxx xx \(\xxxx{x}{x}\), xxxxxxxxx xxx xxxx xxxx xxxxx xxx xxxxxxx xx xxx xxxxx.

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