Which of the following is TRUE about quantitative observations?a.They can be made by smelling or touching an object.b.They always require measuring tools to have an observation.c.They always have units of measurement.d.They are represented by numbers.
Question
Which of the following is TRUE about quantitative observations?a.They can be made by smelling or touching an object.b.They always require measuring tools to have an observation.c.They always have units of measurement.d.They are represented by numbers.
Solution
The statement that is TRUE about quantitative observations is: "They are represented by numbers."
Quantitative observations are based on numerical data. This means they are represented by numbers and can be measured or counted.
While they often have units of measurement and can require measuring tools, this is not always the case. For example, you could make a quantitative observation about the number of people in a room simply by counting, without needing a measuring tool.
As for the first option, smelling or touching an object would result in qualitative observations, which are based on the qualities or characteristics of an object, not numerical data.
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