Final answer:
Option A, 'Number of cars sold in a day,' is NOT continuous data because it represents a countable number, making it quantitative discrete data. The other options represent measurements with possible fractions and decimals, indicating they are continuous.
Step-by-step explanation:
The question asks us to identify which of the given options is NOT continuous data. Continuous data can include fractions, decimals, or irrational numbers and are the result of measurements. The given options are:
- A. Number of cars sold in a day
- B. Volume of water in a swimming pool each day
- C. Person's weight on their birthday
- D. Person's height on their birthday
Options B, C, and D are all examples of continuous data because the volume of water, a person's weight, and a person's height can all be measured in fractions or decimals. Option A, however, is quantitative discrete data because the number of cars sold in a day can only be whole numbers. You cannot sell a fraction of a car, which makes this data discrete, not continuous.