9
QuizMultiple Choice
Mean Absolute Deviation
Question 9 of 10 • Concepts in Probability and Statistics A
Stefano calculated the mean absolute deviation for the data set 32, 4, 12, 40, 20, and 24. His work is shown below.Step 1: Find the mean. Step 2: Find each absolute deviation. 10, 18, 10, 18, 2, 2Step 3: Find the mean absolute deviation. What is Stefano’s error?
Answer
A
Stefano should have divided by 5 when finding the mean.B
Stefano found the absolute deviation of 20 incorrectly.C
Stefano should have divided by 6 when finding the mean absolute deviation.D
Stefano did not find the correct value for the mean.