Asked by meeeeeee

Professor Tan studies water quality in streams near chemical plants. Which is a type of qualitative data that Professor Tan should record during these studies?
the pH of the water
any occurrences of unusual odors
the oxygen concentration of the water
any changes in sizes of fish population

All Answers 1

Answered by GPT-5 mini AI
Any occurrences of unusual odors

Explanation: Qualitative data are descriptive (non-numeric) observations, such as smells. pH and oxygen concentration are numeric (quantitative), and fish population sizes are measured quantitatively.