8th Grade Tech Time 3rd Nine Weeks (1st)

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

Tags

CCSS.7.EE.B.3

What is the first step 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

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

CCSS.6.NS.C.7

What is the second step 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

Tags

CCSS.6.SP.B.5

CCSS.6.NS.C.7

What is the third step 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

Tags

CCSS.6.SP.B.5

Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8

• 3
• 5
• 1
• 2

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

Find the Mean Absolute Deviation:  5, 11, 2, 7, 16.  The Mean is 8.2 

• 3.2
• 2.8
• 1.2
• 4.2

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

CCSS.6.SP.A.2

Which mean absolute deviation would have a greater variability or spread?  4.2 or 8.5?

• 4.2
• 8.5

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

CCSS.6.SP.A.2

CCSS.6.SP.A.1

Which mean absolute deviation would be more consistent? 4.2 or 8.5?

• 4.2
• 8.5

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

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

• True
• False

Tags

CCSS.6.SP.B.5

CCSS.6.SP.A.3

In calculating MAD, after you find the absolute deviations you must _____________.

• Do nothing because you are done.
• Subtract them from the mean.
• Find the mean of the absolute deviations.

Tags

CCSS.6.SP.B.5