Describing Location in a Distribution

What percentage of the data is between 90 and 140?

• 25 %

• 50%

• 75%

• 100%

What does it mean, pun intended, for a piece of data to have a z-score of -1?

• The value is one standard deviation less than the mean

• The value is one standard deviation above the mean

• The value is one standard deviation times the mean

• The value is one standard deviation above the minimum value

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

• A

• B

• C

• D

• E

Which measure of center should you use?

• Mean

• Median

Describe the Shape of the Distribution.

• Unimodal and roughly symmetric

• Unimodal and skewed right

• Unimodal and skewed left

• Bimodal and roughly symmetric

Describe the Shape of the Distribution.

• Unimodal and roughly symmetric

• Unimodal and skewed right

• Unimodal and skewed left

• Bimodal and roughly symmetric