Measures Spread

Find the mean absolute deviation (MAD).

58, 38, 54, 48, 26, 36

• 43

• 20

• 10

• 12

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

A farmer recorded the amount of cherries sold in the past 5 days.

What is the range of the number of kilograms sold?

What is the range?

• The sum of the largest and smallest number

• The number in the middle

• The difference between the largest and smallest number

• The number that appears most often

What is the range?

• 10

• 12

• 15

• 2 - 12

What is the range?

• 6

• 2 - 8

• 3

• 4

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24

• 36

• 39

• 52

Is there an outlier?
If so, what is it?

• no outlier

• outliers are 98 and 17

• outlier is 98

• outlier is 17

What does this symbol represent?

• Standard Deviation

• Variance

• Mean Absolute Deviation

• Sigma

What is the standard deviation for the data given:

• 6.89

• 10.1

• 7.26

• 9