{
  "reviewedAt": "2026-09-07T08:34:03.962134+00:00",
  "reviewer": "Independent root review of frozen input and first response",
  "findings": [
    "Independent calculation gives (10\u00d74 + 30\u00d78) / 40 = 7. The equal-group boundary example correctly gives 6.",
    "The explanation defines the weight and distinguishes a mean from individual scores and spread."
  ],
  "revisions": [
    "No correction needed for the supplied numbers."
  ],
  "firstOutputPreserved": true,
  "editorRevision": false
}