What measures are used to determine the amount of variability that occurs in a data set?
A)Variance
B)Standard Deviation
C)Mean
D)Both Variance and Standard Deviation
E)All of these

Question

Quizplus · Accepted Answer

Variance and standard deviation are both measures of variability in a data set. The variance calculates how spread out the data is from the mean, while the standard deviation is the square root of the variance and provides a measure of the spread of the data. The mean is not a measure of variability, but rather a measure of central tendency. Therefore, the best choice is D, both variance and standard deviation.

What Measures Are Used to Determine the Amount of Variability