Mathematics · Theory of Errors
If the standard deviation of an independently measured angle is ± 2'', what is the standard deviation of the sum of four such angles?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1± 16''
- 2± 2''
- 3± 4''✓
- 4± 8''
Correct answer
± 4''
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