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# Expected monetary value of an alternative with 0.5 probability of making 500?

It is probability sum, you have 50% chance of winning this is equal to 0.5*500=250 and you have a 50% chance of losing, this is equal to 0.5*0=0 Hence, the sum of your chances… is 0.5*500 + 0.5*0 = 250 (MORE)