Comparing statistical measures

What is the definition of median?

• The middle of a

  sorted list of numbers.

• Is the average of

  the numbers.

• is the difference between the lowest and highest values.

• The range from Quartile 1 to Quartile 3.

What is the definition of mean?

• The middle of a

  sorted list of numbers.

• Is the average of

  the numbers.

• is the difference between the lowest and highest values.

• The range from Quartile 1 to Quartile 3.

What is the definition of range?

• The middle of a

  sorted list of numbers.

• Is the average of

  the numbers.

• is the difference between the lowest and highest values.

• The range from Quartile 1 to Quartile 3.

What is the definition of interquartile range?

• The middle of a

  sorted list of numbers.

• Is the average of

  the numbers.

• is the difference between the lowest and highest values.

• The range from Quartile 1 to Quartile 3.

What is the mean of this set of numbers? 12, 14, 12, 15, 13

• 12.1

• 13

• 13.2

• 13.8

What is the median of this set of numbers? 12, 14, 12, 15, 13

• 12

• 12.5

• 13

• 13.5

Find the interquartile range: 2, 4, 6, 8, 10, 12

• 10

• 2

• 6

• 8

Find the mean absolute deviation: 2, 4, 6, 8, 10, 12

• 18

• 6

• 3

• 1

Which list has a larger interquartile range?

List A: 10, 11, 10, 11, 14, 18

List B: 134, 145, 136, 139, 149, 141

• List A

• List B

• Both interquartile ranges are the same

• There is not enough information to tell

Which list has a smaller mean absolute deviation?

List A: 17, 18, 19, 18, 18

List B: 1, 5, 9, 2, 10

• List A

• List B

• Both interquartile ranges are the same

• There is not enough information to tell