Comic: The problem with averaging star ratings

Posted on 13 August, 2011 – 6:16 PM

Courtesy of http://xkcd.com/937/

RD Comment: This problem is not unique to websites and smart phones. More than one donor agency uses “traffic lights” (red, amber, green ratings) to summarise complex performance information into a simple-enough-to-digest form for their hard pressed senior managers

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