DA0-002 Data Analysis Practice Question
A data analyst calculates the mean, median, and mode of a dataset. Which of the following best describes how these measures are used in descriptive statistics?
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
✓
To describe the central tendency of the data
Descriptive statistics summarize data using measures like mean, median, and mode to describe central tendency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To identify outliers using standard deviation
Why it's wrong here
Outlier identification is not the primary use of central tendency.
- ✗
To test hypotheses about population parameters
Why it's wrong here
Hypothesis testing is inferential, not descriptive.
- ✓
To describe the central tendency of the data
Why this is correct
Mean, median, and mode are measures of central tendency.
- ✗
To determine the probability of an event
Why it's wrong here
Probability is not a descriptive statistic.
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