Question

which of the following is an example of a quantitative observation? the bird has a long wingspan. the bird sings beautifully. the bird is friendly. the bird is colorful.

Explanation:

Quantitative observation involves numbers or measurements. "The bird has a long wingspan" can be measured (e.g., in centimeters/inches), while the others ("sings beautifully", "is friendly", "is colorful") are qualitative (descriptive, non - numerical).

Answer:

The bird has a long wingspan.