MLS-C01 Exploratory Data Analysis Practice Question
A data scientist is analyzing a dataset and suspects the presence of outliers that could affect the mean and standard deviation. Which TWO methods are robust to outliers for measuring central tendency and dispersion?
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
✓
Interquartile range (IQR)
Median and interquartile range (IQR) are robust to outliers. Mean and standard deviation are sensitive to outliers. Range is also sensitive.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Interquartile range (IQR)
Why this is correct
IQR is robust to outliers.
- ✗
Range
Why it's wrong here
Range is sensitive to outliers.
- ✗
Standard deviation
Why it's wrong here
Standard deviation is sensitive to outliers.
- ✓
Median
Why this is correct
Median is robust to outliers.
- ✗
Mean
Why it's wrong here
Mean is sensitive to outliers.
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