Example Question - variance

Standard Deviation Calculation

The question you've provided in the image is in Vietnamese, and it's asking for the standard deviation of a dataset with a variance of 64. The standard deviation is the square root of the variance. To find the standard deviation, we take the square root of the variance: √64 = 8 So the standard deviation (độ lệch chuẩn) of the dataset is 8. The correct answer to the question is: B. 8