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Angel_lis
03-07-2010, 01:39 PM
I have the following problem from my home problem.

An oil-prospecting firm hits oil or gas on 10% of its drillings. If the firm drills two wells, the four possible events and three associated probabilities are shown below.

Out come of 1st drilling
There are 4 events
1 Hit (oil or gas)
2 hit
3. miss
4 miss


Outcome of 2nd drilling
there are also 4 events
1 Hit (oil or gas)
2 Miss
3 Hit
4 miss


Construct a tree diagram to represent this experiment.

I just wonder if someone can help me how to approach to draw a tree diagram.

Outlier
03-07-2010, 04:53 PM
http://en.wikipedia.org/wiki/Decision_tree
http://www.mindtools.com/dectree.html
http://www.public.asu.edu/~kirkwood/DAStuff/decisiontrees/index.html