Mean Absolute Deviation (MAD) and Measures of Variability
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These flashcards cover key concepts related to measures of variability, specifically focusing on Mean Absolute Deviation (MAD) and its calculation.
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9 Terms
Mean Absolute Deviation (MAD)
A measure of variability that shows the average distance of each data point from the mean of the data set.
Measure of Variability
A single number that describes the spread of a set of data.
How do you calculate the mean of a data set?
Add all the data values and divide the sum by the number of data values.
What is the first step in calculating MAD?
Find the mean of the data set.
What is the second step in calculating MAD?
Find the distance of each data point from the mean.
What is the formula to find the Mean Absolute Deviation (MAD)?
MAD = Mean of the absolute differences from the mean.
Sample Data Set for MAD Calculation
95, 90, 70, 100, 65, 85, 80, 95, 100, 50.
What is the mean of the sample data set 95, 90, 70, 100, 65, 85, 80, 95, 100, 50?
83.
What is the calculated mean of the distances in MAD calculation?
13.4.
