Q476. This is one of a series of problems (469, 470, 471, 472, 473, 474, 475, 477, 478) relating to the same fictional case: The community of Ourville which is considering some options for creating parks to enhance the quality of life of local residents. The amounts are expressed in simple numbers – e.g., $100 – which you can assume to be referring to realistic amounts – e.g., hundreds of thousands.

The Ourville Alliance, a neighborhood group whose members include several MPPs, likes decision trees. And they think the benefits of the different park options are not certain. In fact, they think that Option A has a 75% chance of a net benefit of 60 and a 25% chance of being a bust and having a net benefit of only 20. By comparison, Option B has a 90% chance of having a net benefit of 50 and a 10% chance of a net benefit of only 10. Sketch in details, labels, etc. on this decision tree as necessary. What do you recommend and why?

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