Introduce Variability

What is the interquartile range?

• 12

• 27

• 15

• 18

What is the interquartile range?

• 3

• 6

• 4

• 5

What is the interquartile range?

• 22.5

• 35

• 60

• 50

• A
• B
• C
• D

Which dot plot shows more variability? 

• a

• b

Which dot plot shows more variability? a or b?

• a

• b

Which question would yield data with variability?

• How many visitors to the park are there in a year?

• How many visitors to the park are there in each year?

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D