In an oft-cited experiment the psychologists Kahneman and Tversky asked a group of subjects to imagine the outbreak of an unusual disease, expected to kill 600 people, and to choose between two public health programs to combat it.
Program A, the subjects were told, had 400 people would die.
Program B had a one-third probability that no one would die and a two-thirds probability that 600 people would die
Which would you choose? Explain your decision.