The engine is considered as faulty when one of the components in the combustion chamber failed to operate (components are listed in PREREQUISITE CONDITIONS section). a) Draw a probability tree, indicating the functionality of each component per branch. [6 marks] b) Calculate the probability of the hybrid car become faulty. Failure probability of the components in the combustion chamber: o Spark plug: 60% o Valves (if spark plug is still functioning): 12% o Valves (if spark plug is not functioning): 45%

The engine is considered as faulty when one of the components in the combustion chamber failed to operate components are listed in PREREQUISITE CONDITIONS secti class=


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