In this TED talk, Oxford mathematician Peter Donnelly describes the common mistakes humans make in interpreting statistics along with the impact these errors have on the outcome of criminal trials.

Source: http://www.youtube.com/watch?v=kLmzxmRcUTo

It’s a great video to show during intro stats courses and to get students thinking about what statistics is all about. For classes it’s better to pause and ask them questions like:

- Which sequence of head and tails will take longer to see: HTT or HTH?
- If a test is 99% accurate for indicating if you have a disease and you test positive, what is the probability that you have the disease?

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