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WS MoreOrLess: The Ignorance Test
Professor Hans Rosling - perhaps best-described as a kind of international development myth buster - delivers his Ignorance Test. Hans asked presenter Ruth Alexander three questions from the test. Can you do any better?
This programme was first broadcast on the 蘑菇短视频 World Service.
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More or Less
Tim Harford explains the numbers and statistics used in everyday life.
