Multiple choice general knowledge

Standard Deviation is

  1. Square of Variance

  2. 2* Variance

  3. Variance / 2

  4. Square root of variance
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Standard Deviation is the square root of variance, representing the average distance of data points from the mean in the original units. Variance is the average of squared deviations from the mean, so taking its square root returns to the original unit scale. Option A has the relationship reversed.

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