Mean vs median: what changes when a list has outliers
Compare the arithmetic mean and median on the same sorted list, then see why an extreme value moves one measure much more than the other.
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Mean, median, mode and range without hidden conventions
Three focused guides explain positional, frequency and exact-decimal behavior with reproducible lists.
No mode or multiple modes? Rules with examples
If no value repeats, the list has no mode. If values tie for the highest frequency, every tied value is a mode. See exact examples for each case.
Read articleExact decimal lists: sum, mean, median and range without binary drift
See how integer scaling keeps entered decimals exact, why decimal convention is explicit and when a displayed result still needs rounding.
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