A Statistician Adds All of the Test Scores for a Group

question 191

Multiple Choice

A statistician adds all of the test scores for a group of participants and then divides the sum by the number of participants. The result of his calculation is the ____________ of the test scores.

• A) arithmetic mean
• B) effect size
• C) p value
• D) standard deviation

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Definitions:

Network Externality

The increase in the value of a good or service to an individual is greater when a large number of others own or use the same good or service.

Positive Externality

A beneficial effect experienced by a third party due to an economic activity, without compensation.

Socially Optimal

Refers to a state or condition in which resources are allocated in the most efficient manner from the perspective of society as a whole, maximizing overall well-being.

Market Quantity

Refers to the total amount of a particular good or service that is available for purchase in a market at a specific point in time.