spoiledgalp2343 spoiledgalp2343

07-08-2024
Mathematics

Answered

The lifetime in months of a certain part has a gamma distribution with α = θ = 2. A company buys three such parts and uses one until it fails, replacing it with a second part. When the latter fails, it is replaced by the third part. What arc the mean and the variance of the total lifetime (the sum of the lifetimes of the three parts) associated with this situation?

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