3 factories produce and ship reclining chairs.


Factory % of chairs produced by this factory % of production that is faulty
A 20% 10%
B 30% 20%
C 50% 10%

You order a chair and when you receive it, you see that it is faulty. Determine:

P(chair came from factory A)
P(chair came from factory B) B C
P(chair came from factory C)