Event Tree Analysis

Event Tree Analysis (ETA) uses the same logical and mathematical techniques as Fault Tree Analysis. However, whereas a fault tree analyzes how an undesirable top event may occur, an event tree considers the impact of the failure of a particular component or item in the system, and works out the effect such a failure will have on the overall system risk or reliability. Event trees use an inductive approach, whereas fault trees are deductive.

[@alvinlyro]

Where do we get data for the probability of the initiating event and also the intermediate events? Do we get these from researches (and not assuming right?).
Also for the iniating event (most left part of the ETA), can we just carry over its probability after doing Fault Tree Analysis previously?
Thank you.

[@bellomonsur6143]

I need to know about the data value as well

[@AminuTukur]

Can't appreciate you enough...Thanks

[@4656c]

Quite useful. Thanks!

[@saurabhpawar9094]

Thanks ☺

[@Marvels7]

gosh cant seem to do this properly and exam is around the corner.omg!!! :(