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## Main Question or Discussion Point

I have been stuck at this calculation. There are two exponential distributions X and Y with mean 6 and 3 respectively. We need to find

E[y-x|y>x]

I keep getting it negative, which is clearly wrong. Anybody wants to try it?

E[y-x|y>x]

I keep getting it negative, which is clearly wrong. Anybody wants to try it?