DA0-002 Data Analysis Practice Question
A data analyst is examining the relationship between advertising spend (in dollars) and revenue (in dollars). The Pearson correlation coefficient r is calculated as +0.92. Which of the following interpretations is correct?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
There is a strong positive linear relationship.
r = +0.92 indicates a strong positive linear relationship.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
There is a strong negative linear relationship.
Why it's wrong here
Positive sign indicates positive relationship.
- ✗
There is no linear relationship.
Why it's wrong here
R close to 1 indicates strong relationship.
- ✓
There is a strong positive linear relationship.
Why this is correct
Close to +1 indicates strong positive.
- ✗
92% of the variation in revenue is explained by advertising spend.
Why it's wrong here
That would be R-squared = 0.8464, not r.
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