Hi guys
I'm not sure if this is the right place to post this. I'm assuming there are some people who know about Probability Theory, as some universities include this subject in electrical engineering.
So here is my Question.
I have two boxes (A and B), which contain a number of integrated circuits (ICs). Box A has contains 100 ICs, of which 10 percent are defective. Box B has 200 ICs, of which 5 percent are defective.
Two ICs are selected from one randomly selected box.
1) Fined the probability that both ICs are defective.
2) Assuming both ICs are defective, determine the probability that they came from box A.
From my understanding of this question, I would use a tree diagram to help obtain the solutions...correct?
Where P[A] = probability of selecting box A = 0.5
P = 0.5
P[D|X] = probability of selecting two defective IC's
P[ND|X] = probability of selecting two not defective IC's
A.D = Two defective IC's from Box A
A.ND = Two not defective IC's from Box A
I need some help getting started with this one. I'm really unsure if my tree diagram is correct, mainly due to the selection of two ICs. Is it possible I would use 4 branches from both A and B?
thanks guys
I'm not sure if this is the right place to post this. I'm assuming there are some people who know about Probability Theory, as some universities include this subject in electrical engineering.
So here is my Question.
I have two boxes (A and B), which contain a number of integrated circuits (ICs). Box A has contains 100 ICs, of which 10 percent are defective. Box B has 200 ICs, of which 5 percent are defective.
Two ICs are selected from one randomly selected box.
1) Fined the probability that both ICs are defective.
2) Assuming both ICs are defective, determine the probability that they came from box A.
From my understanding of this question, I would use a tree diagram to help obtain the solutions...correct?
Where P[A] = probability of selecting box A = 0.5
P = 0.5
P[D|X] = probability of selecting two defective IC's
P[ND|X] = probability of selecting two not defective IC's
A.D = Two defective IC's from Box A
A.ND = Two not defective IC's from Box A
I need some help getting started with this one. I'm really unsure if my tree diagram is correct, mainly due to the selection of two ICs. Is it possible I would use 4 branches from both A and B?
thanks guys