{"id":"trim-mean-removes-exactly-5-percent-each-end","text":"`trimMean` removes `len(arr) // 20` elements from both the low and high ends, which equals exactly 5% when `len(arr)` is a multiple of 20; silently trims fewer than 5% otherwise.","truth_value":"IN","source":"entries/2026/06/06/mean-of-array-after-removing-some-elements-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"trim-mean-removes-exactly-5-percent-each-end","truth_value":"IN","reason":"premise"}]}}