Mind & EverydayFact
200 saved or 400 dead: same numbers, opposite decision.
In 1981 Tversky and Kahneman described a disease threatening 600 people. Program A saves 200 for sure. Program B saves everyone with one-third probability. 72 percent chose A. Then the same choice reworded: with A, 400 die for sure. Now 78 percent chose the gamble. Only the wording had changed.
Useful: Flip every statistic once: 90 percent success means 10 percent failure.
Source: doi.org