At the US Open Tennis Championship a Statistician Keeps Track of Every

question 2

Multiple Choice

At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The lower quartile of a particular playerʹs serve speeds was reported to be
88 mph. Which of the following interpretations of this information is correct?

• A)75% of the playerʹs serves were hit at speeds less than 88 mph.
• B)88 serves traveled faster than the lower quartile.
• C)25% of the playerʹs serves were hit at 88 mph.
• D)75% of the playerʹs serves were hit at speeds greater than 88 mph.

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The extent to which an investment or portfolio is subject to fluctuations in the overall market.

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