Mathematics · Statistics
The mean and variance of 20 observations are found to be 10 and 4, respectively. On rechecking, it was found that an observation 9 was incorrect and the correct observation was 11. Then the correct variance is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13.98
- 24.02
- 34.01
- 43.99✓
Correct answer
3.99
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