Finding MAD
Finding IQR
Median
Mode & Range
Which one would I use?
100
What does each letter of MAD stand for?
Mean Absolute Deviation
100
Find the IQR. 35, 56, 34, 44, 52, 12, 34, 45
IQR = 14.5
100

Find the median. 12, 34, 34, 35, 44, 45, 52, 56

39.5

100

Find the Mode & Range. 12, 34, 34, 35, 44, 45, 52, 56

Mode = 34

Range = 44

100
You want to find the average height of a basketball team. Which central tendency would you use?
Mean
200
Find the MAD: 10, 7 , 13, 10, 8
1.68 / 1.7
200
Find the IQR. 24, 34, 32, 16, 45, 38, 28
IQR = 14
200

Find the Median: 16, 24, 28, 32, 34, 38, 45

32

200

Find the Mode & Range. 16, 24, 28, 32, 34, 38, 45

Mode = None

Range = 29

200
To determine the difference between the smallest and biggest person on a basketball team. Which central tendency would you use?
Range
300
Find the MAD: 110, 114, 104, 108, 106
2.88 / 2.9
300
Define:IQR
The upper quartile (Q3) minus the lower quartile (Q1).


300

Find the Median: 24, 24, 24, 65, 65, 86

44.5

300

Find the Mode & Range. 24, 24, 24, 65, 65, 86

Mode = 24

Range = 62

300
You have a range of answers from a particular survey. You are trying to figure out the middle of the data. Which central tendency would you use?
Median
400
Define: MAD
The average distance each data point is away from the MEAN
400
Find the IQR. 86, 24, 65, 65, 24, 24
IQR = 41
400

Find the Median: 22, 22, 23, 23, 23, 32, 32, 33, 33

23

400

Find the Mode & Range. 22, 22, 23, 23, 23, 32, 32, 33, 33

Mode = 

Range = 11

400
You survey a group of people asking them what their favorite food is. Which central tendency would you use to determine the most popular food?
Mode
500
Find the MAD: 15, 17, 15, 17, 21, 17, 15, 23, 20, 18
2.16 / 2.2
500
Find the IQR. 32, 23, 22, 33, 33, 23, 32, 23, 22
IQR = 10
500

Find the Median: 16, 24, 28, 32, 34, 38, 45

32

500
Define: Median Mode & Range
Median : Middle Number Mode: Appears the most Range: The distance the data set covers
500
You are trying to figure out how close together a certain set of data is, Which central tendency would you use?
MAD
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