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# Probability Question watch

1. Hi, unsure of how to answer this, as not seen anything like this in my text books.

So is it
P(A) = 0.5
P(B) = 0.4
P(C) = 0.1

and the conditional probabilities are

P(F|A) = 0.01
P(F|B) = 0.04
P(F|C) = 0.02

Am I missing anything?
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2. (Original post by Jeffy99)
...
I would expect, initially, something like:

Let A be the event the component came from the first source.
Etc.

Then your probabilities, as you have them.

Your answer is however incomplete as it makes no mention of a component being faulty.
I presume you've come across conditional probability.
3. (Original post by ghostwalker)
I would expect, initially, something like:

Let A be the event the component came from the first source.
Etc.

Then your probabilities, as you have them.

Your answer is however incomplete as it makes no mention of a component being faulty.
I presume you've come across conditional probability.

I just added the conditional probabilities in.

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Updated: September 22, 2014
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