If x1, x2 positive random variables and we have the following two events:(adsbygoogle = window.adsbygoogle || []).push({});

A={x1 > δ}

B={x2> k-δ}

where 0<δ<k

then is it true that:

P(A U B) = P( x1+x2 > δ+(k-δ)=k ) ?

If true can you explain why is that?

Thank you

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# Question about probability of union

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