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China Stock Market Crash
The Chinese stock market may have crashed but was it really ‘Black Monday’? And the strange fact about sprinters legs.
The Chinese Market Crash in context.
How big is the market, how many investors does it have and does it tell us anything about the wider Chinese economy?
Sprinters legs
It may seem strange, but world class runners don’t move their legs faster than average park runner. That’s the claim anyway – is it true and if so what is it that makes athletes like Usain Bolt and Justin Gatlin run so fast?
(Image: An investory looks at a stock information board. Credit: Reuters.)
Last on
Mon 31 Aug 2015
13:50GMT
BBC World Service Australasia
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- Mon 31 Aug 2015 13:50GMTBBC World Service Australasia
Unlock the history and truth behind the data with The OU
When can you trust statistics?
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Tim Harford explains the numbers and statistics used in everyday life

