Mean Absolute Deviation

Front

What is Mean Absolute Deviation?

Back

Mean Absolute Deviation (MAD) is a measure of how spread out the values in a data set are, calculated by finding the average of the absolute differences from the mean.

Front

What is the first step in calculating Mean Absolute Deviation?

Back

The first step is to find the mean (average) of the data set.

Front

What is the second step when calculating the Mean Absolute Deviation?

Back

Find the distance each value is from the mean.

Front

What is another word for average?

Back

Mean.

Front

What does 'absolute' mean in Mean Absolute Deviation?

Back

'Absolute' means the distance is always positive, regardless of whether the value is above or below the mean.

Front

How do you find the mean of a data set?

Back

Add all the numbers together and divide by the total count of numbers.

Front

What is the formula for Mean Absolute Deviation?

Back

MAD = (Σ |x - mean|) / n, where x is each value, mean is the average, and n is the number of values.

Front

If the data set is 10, 8, 5, 12, 20, what is the mean?

Back

The mean is 11.

Front

What is the average distance from the mean for the data set 10, 8, 5, 12, 20?

Back

The average distance from the mean is 4.

Front

Which mean absolute deviation would be more consistent: 4.2 or 8.5?

Back

4.2 is more consistent.