Data Analyst – Statistics Basics
Practice data analyst interview questions on basic statistics. Cover mean, median, standard deviation, correlation, and hypothesis testing concepts. Answer questions and receive feedback on clarity and correctness. Ideal for data analyst interview prep. First 2 questions are free with full feedback.
- Level Intermediate
- Questions 12
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Sample data analyst – statistics basics interview questions
Preview 6 questions from this track in quiz order. In the full quiz you answer one at a time — type or speak — then get a score and feedback.
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What is the difference between mean and median?
What a strong answer includes
Mean is average; median is the middle value; median is less affected by outliers.
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When would you use median instead of mean?
What a strong answer includes
Skewed data or outliers.
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Explain standard deviation in simple terms.
What a strong answer includes
Measures spread around the mean.
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What is correlation?
What a strong answer includes
Measures linear relationship between two variables; does not imply causation.
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What is a p-value?
What a strong answer includes
Probability of observing the result if the null hypothesis is true.
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Explain the difference between population and sample.
What a strong answer includes
Population is the whole group; sample is a subset.