Heart failure is due to either natural occurances (87%) oroutside factors (13%).

Question

Heart failure is due to either natural occurances (87%) oroutside factors (13%). Outside factors are related to inducedsubstances or foreign objects. Natural occurances are caused byarterial blockage, disease, and infection. Assume that causes ofheart failure between individuals is independant. a)   What is the probability that the firstpatient with heart failure that enters the emergency room has thecondition due to outside factors? b)   What is the probability that the thirdpatient with heart failure that enters the emergency room is thefirst one due to outside factors? c)   What is the mean number of heart failurepatients with the condition due to natural causes that enter theemergency room before the first patient with heart failure fromoutside factors? Heart failure is due to either natural occurances (87%) oroutside factors (13%). Outside factors are related to inducedsubstances or foreign objects. Natural occurances are caused byarterial blockage, disease, and infection. Assume that causes ofheart failure between individuals is independant. a)   What is the probability that the firstpatient with heart failure that enters the emergency room has thecondition due to outside factors? b)   What is the probability that the thirdpatient with heart failure that enters the emergency room is thefirst one due to outside factors? c)   What is the mean number of heart failurepatients with the condition due to natural causes that enter theemergency room before the first patient with heart failure fromoutside factors?

Explanation / Answer

A. 13% B. 0.87*0.87*0.13*100% = 9.83% C. (0.87/0.13)/2 = 3.346 (Not 100% sure on this but this is how Ithink you do it)

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