1.

Find the standard deviation if the variance of a data set is 361.   A. ± 19B. 19C. 361D. 180.51. C2. A3. B4. D

Answer» Correct Answer - Option 3 : B

Given:

Variance = 361

Concept used:

The positive square root of the variance is called Standard deviation

S.D = √Variance

Calculation:

S.D = √Variance

⇒ S.D = √361

⇒ S.D = 19

∴ The standard deviation of the data is 19.



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