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Understand the maths behind health and medicine

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Gavin Harper is a mathematician working right at the heart of genetics

A favourite from the archive...
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March 2010
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outlier

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Did you know that you can't average averages? Or that Paris is rainier than London ... but it rains more in London than in Paris? Andrew Stickland explores the dangers that face the unwary when using a single number to summarise complex data.

Tags: statistics : probability : average : correlation : paradox : Simpson's Paradox : mean : median : outlier