Banker's rounding (English)
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Definition (keystage 2)
For banking or scientific purposes it is often considered correct to round something.5 to the nearest even number (not always upwards). For instance, 5.5 rounds to 6, but 12.5 rounds to 12.
This method means that we do not add a bias to a large set of numbers, by rounding up more often than we round down - but unfortunately at a lower level we are more often taught to round something.5 upwards all the time.
This method means that we do not add a bias to a large set of numbers, by rounding up more often than we round down - but unfortunately at a lower level we are more often taught to round something.5 upwards all the time.
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