The variance calculated on 22 scores is equal to 28.93.What is the standard deviation?
A) 1.32 units
B) 1.32 units squared
C) 5.38 units
D) 5.38 units squared

Question

Quizplus · Accepted Answer

To find the standard deviation, we need to take the square root of the variance. Therefore, the standard deviation is √28.93 which equals approximately 5.38 units. So, the correct answer is C. A and B are incorrect because they represent squared units, while the standard deviation is in the same units as the original data. D is incorrect because it represents the variance again, not the standard deviation.

The Variance Calculated on 22 Scores Is Equal to 28