DA0-001 Comparing and Contrasting Data Concepts Practice Question
This DA0-001 practice question tests your understanding of comparing and contrasting data concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A sensor records temperature readings in Celsius and a separate sensor records wind speed in meters per second. A data scientist wants to combine these datasets for analysis. Which statement accurately compares these data types?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Temperature is interval; wind speed is ratio
Temperature measured in Celsius has an arbitrary zero point (0°C does not mean 'no heat'), so it is interval data. Wind speed in meters per second has a true zero point (0 m/s means no wind), making it ratio data. Therefore, option D correctly identifies temperature as interval and wind speed as ratio.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Both are ratio data
Why it's wrong here
Temperature in Celsius is interval, not ratio, because 0°C does not represent absence of temperature.
✗
Temperature is discrete; wind speed is continuous
Why it's wrong here
Temperature is continuous; it can take any value within a range.
✗
Both are discrete data
Why it's wrong here
Temperature and wind speed are both continuous, not discrete.
✓
Temperature is interval; wind speed is ratio
Why this is correct
Celsius has no true zero (interval), while wind speed has a true zero (ratio).
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing interval and ratio data by overlooking the significance of a true zero point, leading candidates to incorrectly classify temperature as ratio data.
Detailed technical explanation
How to think about this question
Interval data supports addition and subtraction but not meaningful multiplication or division (e.g., 20°C is not twice as hot as 10°C). Ratio data supports all arithmetic operations, including ratios, because of a true zero. In real-world analysis, this distinction affects which statistical operations are valid; for example, calculating a coefficient of variation is meaningful for wind speed but not for Celsius temperature.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the DA0-001 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Comparing and Contrasting Data Concepts — This question tests Comparing and Contrasting Data Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Temperature is interval; wind speed is ratio — Temperature measured in Celsius has an arbitrary zero point (0°C does not mean 'no heat'), so it is interval data. Wind speed in meters per second has a true zero point (0 m/s means no wind), making it ratio data. Therefore, option D correctly identifies temperature as interval and wind speed as ratio.
What should I do if I get this DA0-001 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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