The Roller Coaster Database Maintains a Website (Www

question 30

Multiple Choice

The Roller Coaster Database maintains a website (www.rcdb.com) with data on roller coasters around the world.Some of the data recorded include whether the coaster is made of wood or steel and the maximum speed achieved by the coaster, in miles per hour.The box plots display the distributions of speed by type of coaster for 145 roller coasters in the United States as downloaded from the site in November 2003. Are there more wooden or steel roller coasters displayed in this plot?

• A) Wooden
• B) Steel
• C) There are an equal number of both types of roller coasters.
• D) We cannot tell the sample sizes from a box plot.

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