COMPSCI 171 Quiz: 2014-wq-cs-171-quiz-4
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Quiz#4 winter quarter, 2014 20 minutes. : seat no: (5 pts) definition of conditional probability. Write down the definition of p(h | d) in terms of p(h), p(d), p(h d), and p(h d): (5 pts) bayes" rule. Write down the result of applying bayes" rule to p(h | d): (15 pts) bayesian networks. Draw the bayesian network that corresponds to this factored conditional probability expression. Draw left-to-right, i. e. , put a and b on the left, g and h on the right: (30 pts total) bayesian networks. Shown below is a bayesian network and its probability tables. 4. a. (15 pts) write the factored conditional probability expression that corresponds to this network: 4. b. (15 pts) write down an expression that will evaluate to p( a=t b=f c=t d = f e = f). Express your answer as a series of numbers (numerical probabilities) separated by multiplication symbols. You do not need to carry out the multiplication to produce a single number.
