Which of the following phenomena are attributable to overconfidence?

$($More than one answer may apply.$)$

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The tendency for people to think that they have very smart friends.The tendency for people to think that they have very smart friends.

The tendency to think that CEOs are geniuses.The tendency to think that CEOs are geniuses.

The fact that only between $5$ and $10\%$ of the students in the class had the correct weight of the earth within their $90\%$ confidence interval.The fact that only between $5$ and $10\%$ of the students in the class had the correct weight of the earth within their $90\%$ confidence interval.

The tendency to avoid anything that you might regret later.