patient is overdosed. The following figure shows a Bayesian network that depicts the
probabilities of drug X overdose and the related symptoms.
Rash
O
true 0.8
false 0.3
P(R=true)
Drug X Overdose
Headache
O P(H=true)
true 0.5
false 0.6
P(O=true)
0.15
Dizziness
O
true 0.7
false 0.1
P(D=true)
Using this network, please answer the following questions. For each question, write
the equation and compute the final probability.
What is the probability of a patient being overdosed of drug X if he/she
1. has a rash, but no headache or dizziness? (5 points)
2. has a rash and a headache, but no dizziness? (5 points)
3. has dizziness but no rash and no headache? (5 points)
4. has a rash, a headache and dizziness? (5 points)
Fig: 1