Mean Absolute Deviation and Scatter Plots

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 average distance between the data values and the mean

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

Find the MAD for the following set: 85, 90, 68, 75, 79

• 79.4

• 6.48

• 32.4

• 79

What was the mean absolute deviation of the number of minutes Mira practiced each day?

• 4.0

• 4.4

• 4.6

• 4.9

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation

What is the trend for this scatter plot

• Negative

• Positive

• None

The list shows the number of songs that five students each downloaded last week.

32, 43, 38, 28, 51

What is the mean absolute deviation of the numbers in the list?

• 34.4

• 6.88

• 38.4

• 7.68

Find the MAD: (mean absolute deviation)

58, 38, 54, 48, 26, 36

• 10

• 20

• 12

• 43

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 

• 65

• 92

• 70

• 76

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

Tags

CCSS.HSF-LE.A.1B