what must be part of a quantitative observation?\no a change of state\no a change in size\no a number\no a…

what must be part of a quantitative observation?\no a change of state\no a change in size\no a number\no a color

what must be part of a quantitative observation?\no a change of state\no a change in size\no a number\no a color

Answer

Brief Explanations:

Quantitative observations involve numerical data. A change of state, change in size without a numerical value, and color are qualitative. Only a number is part of a quantitative observation.

Answer:

a number