TEKS.MATH.8.11B

Determine the mean absolute deviation of the data.
9, 7, 11, 10, 8

• 9
• 6
• 1.2
• 5

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TEKS.MATH.8.11B

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4

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TEKS.MATH.8.11B

Your math grades are 90, 85, 58, 90, 80, 100, and 90.  Which grade is the outlier?

• 90
• 58

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TEKS.MATH.8.11B

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

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TEKS.MATH.8.11B

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

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TEKS.MATH.8.11B

What is Mean Absolute Deviation?

• The mean of the data

• The absolute value of the mean

• The variation of data values around the mode

• The rage distance between the data values and the mean

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TEKS.MATH.8.11B

True or false? :The larger the Mean Absolute Deviation the more consistent the data is.

• True

• False

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TEKS.MATH.8.11B

In calculating MAD, after you find the average or mean you must _____________.

• do nothing because you're done

• Find out the distance each number is from the mean.

• Find the distance each number is from zero.

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TEKS.MATH.8.11B

What is the absolute mean deviation of the data? 45, 55, 60, 48, 57, 52, 49 if the mean is 52.3

• 4.0

• 5

• 5.2

• 4.33

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TEKS.MATH.8.11B

Find the MAD: (mean absolute deviation)

58, 38, 54, 48, 26, 36

• 10

• 20

• 12

• 43

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TEKS.MATH.8.11B