Hi All,


I'm sorry that this question is trivial but I'm afraid I've forgotten how to solve simple probability and statistics problem Say that:

Probability of Metal A causing harm to corals is 0.6.
Probability of Metal B causing harm to corals is 0.8.

The joint probability of both Metal A and Metal B causing harm to corals is given by:
(0.6+0.8)-(0.6*0.8)=0.92.

Question: What's the contribution of Metal A/Metal B respectively to the joint probability risk of 0.92?