Mathematics · Statistics
Consider the following statements regarding measures of dispersion: Statement I: Standard deviation is calculated using all observations in a data set and is affected by extreme values. Statement II: Quartile deviation is completely unaffected by extreme outliers because it is based only on the middle 50% of the data. Choose the correct answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both Statement I and Statement II are correct.✓
- 2Both Statement I and Statement II are incorrect.
- 3Statement I is correct but Statement II is incorrect.
- 4Statement I is incorrect but Statement II is correct.
Correct answer
Both Statement I and Statement II are correct.
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