This "secret message" activity will amuse your students and teach them about mean absolute deviation.
Directions: In each row, determine which set of data has the greatest mean absolute deviation. You may need to use another sheet of paper to record the mean, the distances from the mean, and the average distance from the mean. Circle the letter next to the greatest mean absolute deviation in each row. The first one has been completed for you.
This worksheet moves from very basic (data on a number line, with the mean already found) to the more complex (a set of data, students must find mean, distance from mean, and m.a.d.).
At the end, read the message from top to bottom. It reads, "far from mean" (The other letters spell "my head hurts").
And all you have to do is copy it! The prep is all done for you. It's easy to check. Just see if they found the secret message! It's up to you to determine how much work you require your students to show. Use it as group work, homework, enrichment, or extra practice.
Want more M.A.D. resources? Check out the M.A.D. PowerPoint Mini-Lesson
and the student handout freebie cheat sheet
You can get this activity and 12 more in the Secret Message Math Bundle
. Check it out! You save over 50% by buying the bundle.
Thanks, and enjoy!