false positive
http://plus.maths.org/content/taxonomy/term/826
enThe logic of drug testing
http://plus.maths.org/content/logic-drug-testing
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John Haigh </div>
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<p>London 2012 vowed to be the cleanest Olympics ever, with more than 6,000 tests on athletes for performance enhancing drugs. But when an athlete does fail a drug test can we really conclude that they are cheating? John Haigh does the maths.</p>
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<p><em> London 2012 vowed to be the cleanest Olympics ever, with more than 6,000 tests on athletes for performance enhancing drugs. But when an athlete does fail a drug test can we really conclude that they are cheating? John Haigh does the maths. (You can also look at the <a href="http://plus.maths.org/content/logic-drug-testing#animation">animation below</a> to see the results illustrated.)</em></p><p><a href="http://plus.maths.org/content/logic-drug-testing" target="_blank">read more</a></p>http://plus.maths.org/content/logic-drug-testing#commentsbayes theoremconditional probabilityfalse positivemathematics in sportolympicsThu, 02 Aug 2012 10:23:50 +0000mf3445757 at http://plus.maths.org/contentThe tiger that isn't: numbers in the media
http://plus.maths.org/content/tiger-isnt-numbers-media
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Michael Blastland and Andrew Dilnot </div>
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NHS budgets, third world debt, predictions of global warming, inflation, Iraqi war dead, the decline of fish stocks or hedgehogs, the threat of cancer — there's hardly a subject people care about that comes without measurements, forecasts, rankings, statistics, targets, numbers of every variety. Do they illuminate or mislead? Introducing their new book, <b>Michael Blastland</b> and <b>Andrew
Dilnot</b> take a look at numbers in the media and show that a little maths goes a long way in unravelling dodgy media claims. </div>
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<div class="pub_date">December 2007</div>
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<p><i>In their new book</i> <a href="/issue45/reviews/book2/">The tiger that isn't</a> <i>Michael Blastland and Andrew Dilnot have a look at numbers in the media and discover that while they can be made to back up all kinds of non-sensical claims, it often only takes a little maths to unravel faulty arguments. In this article they give us a taster of the book.</i></p><p><a href="http://plus.maths.org/content/tiger-isnt-numbers-media" target="_blank">read more</a></p>http://plus.maths.org/content/tiger-isnt-numbers-media#comments45averagefalse positivemathematics in the mediapercentagestatisticsSat, 01 Dec 2007 00:00:00 +0000plusadmin2321 at http://plus.maths.org/content