What value to expect with X% success?

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I'm trying to intuit the following statements based on the plot below, but I'm stuck on the third one. I'd appreciate an explanation to clear up my thinking:

  1. What NPV (net present value) can be expected with 80% chance of success

In this case I would read off from the 20 % cumulative probability, as there is an 80 per cent chance of a greater value.

  1. What NPV can be expected with 100% chance of success

In this case I would read off from the 0 % cumulative probability, as there is a 100 per cent chance of a greater value.

  1. What NPV can be expected with 10% chance of success

In this case I would read off from the 90 % cumulative probability, as there is a 10 % chance of a greater value.

Where I get stuck in case 3 is the fact that the discrete probability shows a ~10% chance of a value at -1.6... so isn't there a 10% chance of getting an NPV value here as well, other than those that occur if I read off from the 90% cumulative probability? Perhaps it's the case that I need to state "What is the greatest NPV that can be expected with a 10% chance?"

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