Question

Heart failures are due to either natural occurrences (84%) or outside factors (16%). Outside factors are related to induced substances (77%) or foreign objects (23%). Natural occurrences are caused by arterial blockage (57%), disease (31%), and infection (12%). Determine the probability that a failure is due to an induced substance.

Answer 1

The probability that a heart failure is due to an induced substance is approximately 12.32%.

Step-by-step explanation:

The probability that a heart failure is due to an induced substance can be calculated by multiplying the respective probabilities at each level of the hierarchy. First, we need to find the probability of an induced substance among the outside factors: 16% * (77% / 100%) = 0.1232. Therefore, the probability that a heart failure is due to an induced substance is approximately 12.32%.