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

question 112

Multiple Choice

At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The statistician reported that the mean serve speed of a particular player
Was 100 miles per hour (mph) and the standard deviation of the serve speeds was 15 mph. Using
The z-score approach for detecting outliers, which of the following serve speeds would represent
Outliers in the distribution of the playerʹs serve speeds?
Speeds: 50 mph, 80 mph, and 105 mph

• A)50, 80, and 105 are all outliers.
• B)50 and 80 are both outliers, 105 is not.
• C)50 is the only outlier.
• D)None of the three speeds are outliers.

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Definitions:

Affirming Thoughts

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