Answer:
C. What is the relationship between salary, measured in dollars, and age, measured in years?
Explanation:
Qualitative descriptive statistic will provide an enhanced presentation toward a certain occurrence, but the data is not measured by numbers.
When you see option A, frequencies and percentage is measured by numbers. So we can cross this out.
In option D, means and standard deviations is also measured in numbers.
This only leave us with option C.