Calculating Mean Absolute Deviation (MAD) Step-by-Step

What does MAD stand for in statistics?

• Median Aligned Data

• Maximum Absolute Difference

• Mode Analysis Detail

• Mean Absolute Deviation

Why is the mean not always a good representation of data?

• It can be influenced by extreme values

• It always equals the median

• It cannot be calculated for large datasets

• It represents the total sum of all data points

How many minutes did Ralph and Sandra each practice over five days?

• 100 minutes

• 50 minutes

• 200 minutes

• 150 minutes

What was the mean practice time for Ralph and Sandra?

• 20 minutes

• 30 minutes

• 15 minutes

• 25 minutes

What is the mean absolute deviation of Ralph's practice sessions?

• 14 minutes

• 10 minutes

• 5 minutes

• 20 minutes

Which formula is used to calculate the mean absolute deviation?

• Sum of deviations without taking absolute values

• Sum of squared deviations divided by the number of values

• Sum of absolute deviations divided by the number of values

• Sum of deviations divided by the maximum value

What was Sandra's mean absolute deviation?

• 0 minutes

• 10 minutes

• 5 minutes

• 2 minutes

Which practice sessions showed more variability?

• Ralph's sessions

• Sandra's sessions

• Both showed equal variability

• Neither showed any variability

What does the mean absolute deviation help to understand?

• The sum of all data points

• The lowest value in the data set

• The highest value in the data set

• The variability of data around the mean

Where can students practice more problems on mean absolute deviation?

• mathpractice.com

• statisticsfun.com

• learnmaths.org

• tutoringhour.com