DA0-002 Data Analysis Practice Question
An analyst computed the mean, median, and mode of a dataset and found they are all equal. Which of the following best describes the distribution?
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
✓
Symmetric
When mean, median, and mode are equal, the distribution is symmetric and unimodal, often resembling a normal distribution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Bimodal
Why it's wrong here
Bimodal distributions have two modes, but mean and median may not equal the modes.
- ✗
Negatively skewed
Why it's wrong here
In negative skew, mean < median < mode.
- ✗
Positively skewed
Why it's wrong here
In positive skew, mean > median > mode.
- ✓
Symmetric
Why this is correct
Symmetric distributions have equal mean, median, and mode.
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