probability

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If the Democrats get close to retaking the US House of Representatives in the midterm elections, the odds of impeachment are high. But the Senate remains problematic.

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Passionate Socceroos fans will be dreaming big about Australia winning the 2018 World Cup in Russia - but probability models reveal interesting data about the actual chances of a shock success.

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We are often presented with surveys that claim to show how we all think on a certain subject. But what sample size is big enough to make the findings credible?