Mean Absolute Deviation Concepts

What does Mean Absolute Deviation (MAD) tell us about a set of numbers?

• The largest number in the set.

• The average distance each number is from the mean.

• The number that appears most often.

• The middle number when the set is ordered.

What is the first step you need to take when calculating the Mean Absolute Deviation (MAD) for a set of numbers?

• Find the median of the numbers.

• Subtract each number from the mean.

• Find the mean of the numbers.

• Add all the numbers together.

For the dataset 3, 3, 5, 8, 8, 12, what is the mean?

• 5.5

• 6

• 6.5

• 7

If a dataset has a high Mean Absolute Deviation (MAD), what does that mean about the numbers in the dataset?

• The numbers are very close to each other.

• The numbers are spread out over a wide range.

• The numbers are all the same.

• The numbers are mostly negative.