A Professor Grades 120 Research Papers and Reports That the Average

question 24

Multiple Choice

A professor grades 120 research papers and reports that the average score was an 80%.What do we know about the sum of the differences of these 120 scores from their mean of 80%?

• A)The sum of the differences is minimal.
• B)The sum of the differences is 80%,the same as the mean.
• C)The sum of the differences is equal to zero.
• D)It is impossible to know without knowing each of the 120 scores.

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Definitions:

Local Variables

Variables that are declared inside a function or block of code and are only accessible within that function or block.

Method Main

The entry point for execution in many programming languages, particularly Java, where the main method is where the program starts running.

Accompanying Figure

An accompanying figure typically refers to a visual representation such as a chart, diagram, or illustration that supports and explains textual content.

Fields

Variables within a class in programming that store data or state of an object.