Frage 93

A class records data on several characteristics of its members. Which statements about grouping that data are true? Select all that apply.

Data on a characteristic with separate categories is grouped by category nameRichtige Antwort
Measured values such as hand span are best listed as separate named categories with nothing in between
Blood group data is best grouped into ranges of values
Data on a measured characteristic is grouped into ranges of valuesRichtige Antwort

Erklärung

The grouping has to match the data: named groups suit results that already arrive as separate kinds, while measurements need ranges because almost no two people share an exact value. Forcing measurements into named groups invents boundaries the measurements do not have, and giving a set of categories a range implies values between them that do not exist.

Erklärung

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