Determine the level of measurement for the variable "marital status of individuals."

Determine the level of measurement for the variable "weight of a person in kilograms."

An analyst wants to compute the mean of responses on a five-item Likert scale (1–5) and then multiply that mean by 1.2 to create an adjusted score. Evaluate the validity of this procedure and choose the most defensible conclusion.

A dataset contains temperatures in Fahrenheit. The analyst proposes converting these to Kelvin before statistical modeling. Evaluate whether the level of measurement changes and indicate which additional arithmetic operations become valid after conversion.

You must write an exam question that asks students to compute a meaningful aggregate for a ratio-level dataset. Which candidate dataset and prompt best meet that requirement?