Calculating Mean and Absolute Value

What is the mean absolute deviation of the data: 15, 20, 25, 17, 18

• 4.5

• 2.8

• 4

• 3.8

Find the MAD: (mean absolute deviation)

58, 38, 54, 48, 26, 36

• 10

• 20

• 12

• 43

What is the first step (1-2) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the data

• Find the mean of the distances

What is the second step (3) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

What is the absolute value of |-26| ?

• 26

• -26

• -36

• 36

Write the answer to the absolute value:

|100| =

Mathematical Equivalence

ON

A number's distance from 0 on the number line (always positive)

• Reciprocal

• Integer

• Opposite

• Absolute Value

What is the value of | –3 | ?

• 3

• -3

• 0.30

• 30

The absolute value of 7 is 7 and -7
What numbers have the absolute value of 2/3

• 1/3 and 2/3

• 0, 2/3, and -2/3

• 2/3 and -2/3

• 3/2 and -2/3

What is the third step (4-5) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the data

• Find the mean of the distances