A Set of Final Examination Grades in a Calculus Course

question 150

Multiple Choice

A set of final examination grades in a calculus course was found to be normally distributed with a mean of 69 and a standard deviation of 9.Only 5 percent of the students taking the test scored higher than what grade?

• A)70.04
• B)67.96
• C)55.48
• D)82.52

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Definitions:

Diminishing Returns Effect

A principle in economics where increasing one factor of production, while keeping others constant, will at some point yield lower per-unit returns.

Variable Cost

Expenses that vary directly with the level of production output, such as raw materials, labor, and energy costs.

Output

The total amount of goods or services produced by a company, sector, or economy within a specific time period.

Average Total Cost

The total cost of production (fixed plus variable costs) divided by the number of units produced.