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

question 36

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 player's serve speeds? Speeds: 50 mph, 80 mph, and 105 mph

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

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Definitions:

Opportunity Cost

The value of the next best alternative foregone as a result of making a decision.

Point E

typically used in the context of graphs, it can represent a specific equilibrium point or any designated point of interest.

Point D

In the context of economics or finance, this term is incomplete without additional context to define its specific relevance.

Opportunity Cost

Overlooking potential benefits from competing options when one is ultimately selected.