95% confidence interval repeated sampling interpretation

A 95% confidence interval does not mean 95% odds

A 95% confidence interval does not mean there is a 95% chance that the true value lies inside the interval you got. Instead, if you repeated the same procedure many times, about 95% of the resulting intervals would contain the true value.

The eye adapts across a huge range of brightness

100-trillion-fold

By adapting to changing light, the human eye can work across brightness levels spanning roughly 100 trillion times from dim to bright. At any one moment, however, the range it can handle is much smaller.

One failed escape made France's king look like an enemy within

In 1791, Louis XVI tried to flee France but was caught at Varennes. The failed escape convinced many people that the king was looking for outside help against the Revolution. Trust in a monarchy limited by a constitution weakened, and demands for loyalty and preparations for war grew.

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95% confidence interval repeated sampling interpretation

A 95% confidence interval does not mean 95% odds

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