For a parallel structure of identical components, the system can succeed if at least one of the components succeeds. Assume that components fail independently of each other and that each component has a 0.19 probability of failure. How many components would be needed in the structure so that the probability that the system will succeed is greater than 0.9999?
A) Would it be unusual to observe one component fail? Yes/No
B) Would it be unusual to observe two components fail? Yes/No
C) What is the probability that a parallel structure with 2 identical components will succeed? (Type an intger or a decimal)
D) How many components would be needed in the strucutre so that the probability the system will succeed is greater than 0.9999? (round to the nearest whole number