full transcript

From the Ted Talk by Mariano Sigman and Dan Ariely: How can groups make good decisions?

Unscramble the Blue Letters

In the case of the height of the Eiffel Tower, let's say a group has these answers: 250 meters, 200 mteres, 300 meters, 400 and one totally absurd answer of 300 million meters. A simple average of these nmuebrs would inaccurately skew the rlsuets. But the robust aavrgee is one where the group largely ignores that absurd answer, by giving much more weight to the vote of the ppolee in the middle. Back to the experiment in vocnveaur, that's exactly what happened. Groups gave much less weight to the outliers, and instead, the consensus tnerud out to be a robust average of the individual answers. The most remarkable thing is that this was a spontaneous behavior of the group. It happened without us giving them any hint on how to reach cuesnosns.

Open Cloze

In the case of the height of the Eiffel Tower, let's say a group has these answers: 250 meters, 200 ______, 300 meters, 400 and one totally absurd answer of 300 million meters. A simple average of these _______ would inaccurately skew the _______. But the robust _______ is one where the group largely ignores that absurd answer, by giving much more weight to the vote of the ______ in the middle. Back to the experiment in _________, that's exactly what happened. Groups gave much less weight to the outliers, and instead, the consensus ______ out to be a robust average of the individual answers. The most remarkable thing is that this was a spontaneous behavior of the group. It happened without us giving them any hint on how to reach _________.

Solution

  1. people
  2. vancouver
  3. consensus
  4. results
  5. numbers
  6. meters
  7. average
  8. turned

Original Text

In the case of the height of the Eiffel Tower, let's say a group has these answers: 250 meters, 200 meters, 300 meters, 400 and one totally absurd answer of 300 million meters. A simple average of these numbers would inaccurately skew the results. But the robust average is one where the group largely ignores that absurd answer, by giving much more weight to the vote of the people in the middle. Back to the experiment in Vancouver, that's exactly what happened. Groups gave much less weight to the outliers, and instead, the consensus turned out to be a robust average of the individual answers. The most remarkable thing is that this was a spontaneous behavior of the group. It happened without us giving them any hint on how to reach consensus.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
small groups 3
collective decisions 2
completely acceptable 2
reach consensus 2
robust average 2

Important Words

  1. absurd
  2. answer
  3. answers
  4. average
  5. behavior
  6. case
  7. consensus
  8. eiffel
  9. experiment
  10. gave
  11. giving
  12. group
  13. groups
  14. happened
  15. height
  16. hint
  17. ignores
  18. inaccurately
  19. individual
  20. largely
  21. meters
  22. middle
  23. million
  24. numbers
  25. outliers
  26. people
  27. reach
  28. remarkable
  29. results
  30. robust
  31. simple
  32. skew
  33. spontaneous
  34. totally
  35. tower
  36. turned
  37. vancouver
  38. vote
  39. weight