On a Test with a Population Mean of 75 and Standard

question 42

Multiple Choice

On a test with a population mean of 75 and standard deviation equal to 16, if the scores are normally distributed, what percentage of scores fall between 70 and 80?

• A) 75.66
• B) 70 23
• C) 24.34
• D) 23.57
• E) 12.17

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Definitions:

Relevant Range

The extent of activity or volume over which the specific cost assumptions and behaviors are considered valid.

Opportunity Cost

The cost of forgoing the next best alternative when making a decision, representing potential benefits that are missed.

Contribution Margin

The difference between a product's selling price and its total variable costs, which helps cover fixed costs and create profit.

Net Operating Income

The profit generated from a company's core business operations, excluding deductions for interest and taxes.