Chapter 12 Review

Which number would not appear as a stem in a stem-and-leaf plot?

• 3
• 4
• 5
• 6

The table has information about the tallest buildings.  How many buildings have more than 40 stories?

• 1
• 4
• 5
• 6

Find the lower quartile for the tallest buildings.

• 32
• 33
• 41
• 42.5

Which sentence best describes the data?

• The buildings vary by 24 stories.
• The median stories is 42.
• The interquartile range is 12.
• The lowest number of stories is 30.

Find the interquartile range.

• 47.5
• 33
• 14.5
• 10.5

What percent of the data is between 85-100?

• 10%
• 25%
• 50%
• 75%

Which interval has the most amount of medals?

• 1-5
• 6-10
• 11-15
• 16-20

How many countries had at least 16 medals?

• 2
• 4
• 16
• 20

Choose the sentence that best describes the data in the graph,

• Sales increased 47% from Jan to Mar.
• Sales decreased 47% from Mar. to Apr.
• Sales increased 2.5 times from Jan. to Mar.
• Sales decreased 2.5 times from Mar. to Apr.

Mary has 4 skirts and 8 blouses.  How many outfits are possible?

• 12
• 28
• 32
• 36