Re: 2 problems strugglin with
Problem 1 does not look well-defined. If you want help with your homework, at least copy the assignments carefully.
In problem 2, we're given a constant density function, hence the task is simply to find the area of favorable outcomes and divide it by the area of possible outcomes. (Exercise for the reader: Explain why this is so.)
The possible outcomes are the set of (x,y) such that 0<x<y<1. The favorable outcomes are the set of (x,y) such that 0<x<y<1/2. Exercise for the reader: Sketch the corresponding areas to find the answer.
Hope this helps,
Carsten.
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