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  "path": "/t/basic-question-on-the-rms-book-calculation/28765#post_1",
  "publishedAt": "2026-05-30T04:14:07.000Z",
  "site": "https://discourse.datamethods.org",
  "textContent": "In chapter 18.1.2 an example for the exponential distribution is given. The problem that I have is with the expected life length \\mu. The MLE of \\mu is w/n_u, I get that but the estimated variance is w^2/n_u^3. Where does this expression come from?",
  "title": "Basic question on the rms book calculation"
}