Words / C1

p-uh-RAM-it-uh/pəˈræmɪtə/

A parameter is a bounding rule, or in statistics a value that defines a model: within the parameters, a parameter of the model. Limit and boundary are everyday; perimeter is the outer edge of a shape — the classic mix-up. Do not write parameter for a vague “thing we care about”.

Meaning

A limit or rule that controls how something can be done; in statistics, a value that defines a model.

Examples

• “Stay inside the ethical parameters; a clever workaround is still a breach.”
• “Limit is everyday. A statistical parameter is not a sample statistic (that is an estimate). Perimeter is the fence round a field. “A key parameter of success” is often just waffle for factor.”

Good to know

A bounding rule (or a model value). Everyday: limit. Mix-up: perimeter (outer edge). Stats: parameter ≠ sample statistic. Not a woolly “factor”.

Near in meaning

limit

New