{
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  "path": "/t/rms-parametric-survival-models/28766#post_2",
  "publishedAt": "2026-05-30T16:57:20.000Z",
  "site": "https://discourse.datamethods.org",
  "textContent": "I have a basic question. On the book section 18.1.2 an example is given for the exponential distribution. The expected life length \\mu is 1/\\lambda and the MLE of \\mu is then w/n_u. However, I have a problem understanding is why the estimated variance of \\mu is w^2/n_u^3?",
  "title": "RMS Parametric Survival Models"
}