Question

Asked Oct 22, 2019

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On the attached paper I need to know why the four numbers from the tree were added to get the answer 10.4% because I will have to do a similar problem one a test

1 Rating

Step 1

Here the question is that why we add those 4 numbers from the tree. And given that P(W) = 0.2 and P(L) = 0.8.

__Note:__

If A and B are two independent events, then P(A∩B) = 0.

So, P(A∪B) = P(A) + P(B) – P(A∩B)

=> P(A∪B) = P(A) + P(B). ------(1)

Step 2

__Idea:__

We will go step by step forming the answer.

Step 3

Continuing fu...

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