Dora calculated the mean absolute deviation for the data set 35, 16, 23, 42, and 19. Her work is shown below.Step 1: Find the mean. Step 2: Find each absolute deviation. 8, 11, 4, 15, 8Step 3: Find the mean absolute deviation. What is Dora’s error?
Answer
D
Dora should have divided by 4 when finding the mean.
D
Dora found the absolute deviation of 35 incorrectly.
D
Dora used only four numbers in finding the mean.
D
Dora used only four numbers in finding the mean absolute deviation.