Question: 3. Two electrical components are connected in series, so if one component fails, then the whole system fails. The lifetime of the rst component is

3. Two electrical components are connected in series, so if one

3. Two electrical components are connected in series, so if one component fails, then the whole system fails. The lifetime of the rst component is exponential with average lifetime 4 years, while the second component is also exponential with average lifetime 5 years. Assume the two components are independent. How long can you expect the whole system to last? Is it 4 years? 4. In the situation above, how likely is it that component 1 fails before component 2

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