Which of the following statements about the mean absolute deviation (MAD)is themost accurate?
A) It is the square root of the standard deviation.
B) It can be a positive number or a negative number.
C) It is denominated in the same units as the original data.
D) It is the arithmetic mean of the squared deviations from the mean.

Question

Quizplus · Accepted Answer

The mean absolute deviation (MAD) is the average distance between each data point and the mean of the data set. It is always a positive number and is denominated in the same units as the original data. Choice A is incorrect because the square root of the variance gives the standard deviation, not the MAD. Choice B is incorrect because the MAD is always positive. Choice D is incorrect because it describes the formula for the variance, not the MAD.

Which of the Following Statements About the Mean Absolute Deviation