[Solved]: Some information about the causes and symptoms of…

Question 2 Some information about the causes and symptoms of Heart Disease are available. The factors that affect a patient’s chances of having heart disease are: – Diet (measured as Healthy or Unhealthy) – Exercise (measured as Regular or Irregular) It is also known that if a patient has Heart Disease (measured as True or False) it will affect the patient’s symptoms, namely: – The patient having Chest Pain (measured as Severe or Mild) – The patient experiencing Shortness of Breath (measured as Present or Absent) The following evidence is available about patients in general: – 75% of patients maintain a Healthy Diet – of patients engage in Regular Exercise Of patients that have Heart Disease the following is known: – 10% have an Unhealthy Diet and Irregular Exercise – have an Unhealthy Diet but engage in Regular Exercise – 5% have a Healthy Diet and Irregular Exercise – 1 out of every 200 have a Healthy Diet and engage in Regular Exercise The following is known about the Chest Pain results of patients tested for Heart Disease: – 18 out of 20 patients with Heart Disease experience Severe Chest Pain – 1 out of 10 patients who do not have Heart Disease experience Severe Chest Pain The following is known about the symptoms of Shortness of Breath: – of patients with Heart Disease have symptoms of Shortness of Breath – of patients who do not have Heart Disease have symptoms of Shortness of Breath Answer the following questions: a) Construct a Bayesian Belief Network that illustrates the conditional dependencies between the five variables, and draw a diagram to illustrate the network. b) On your belief network diagram, show the conditional probability tables for each of the five variables.