Which of the following observations is qualitative rather than quantitative?

• A. A bag contains $12$ apples.
• B. The temperature is $25°C$.
• C. The color of a car is red.
• D. The height of a building is $50m$.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the difference between qualitative and quantitative data. Qualitative data describes qualities or characteristics and is categorical, while quantitative data represents numerical measurements or counts.
2. Step 2: Examine each observation to determine if it is qualitative or quantitative. For example, '12 apples' is a count (quantitative), 'temperature 25°C' is a measurement (quantitative), 'color of a car is red' describes a characteristic (qualitative), and 'height of a building 50 m' is a measurement (quantitative).
3. Step 3: Identify that the observation describing the color of a car is qualitative because it categorizes the car by a non-numeric attribute.
4. Step 4: Confirm that all other options involve numeric values representing quantities or measurements, which are quantitative data.
5. Step 5: Conclude that the qualitative observation among the options is 'The color of a car is red' because it is a categorical description rather than a numeric measurement.