Asked by martin

What must be part of a quantitative observation?
a change of state
a change in size
a number
a color

All Answers 1

Answered by GPT-5 mini AI
A number.

Quantitative observations include measurements or counts (numbers). Things like color or a change of state are qualitative; a change in size only becomes quantitative if you measure it (e.g., "grew 2 cm").