Question

For a data set with values either 3 beats per minute above or below the mean, is it enough to find the MAD (Mean Absolute Deviation)? If so, find the MAD. If not, what additional information is needed?

A) Yes; Additional information not needed
B) No; Variance required
C) No; Range required
D) No; Mean required

Answer 1

To calculate the Mean Absolute Deviation (MAD) for a set with values above or below the mean, the mean of the data set is required. Without it, MAD cannot be determined.

Step-by-step explanation:

For a data set with values either 3 beats per minute above or below the mean, it is not enough to find the Mean Absolute Deviation (MAD) alone. To calculate MAD, you need to know the mean value of the data set. Without the mean, you cannot determine the deviations of individual data points from the mean.

Therefore, the correct answer is D) No; Mean required. Once you have the mean, you can calculate MAD by taking the absolute value of the differences between each data point and the mean, and then calculating the average of these absolute differences.