The Scores of Students on a Standardized Test Form a Normal

question 32

Multiple Choice

The scores of students on a standardized test form a Normal distribution with a mean of 300 and a standard deviation of 40. Using the fact that the middle 50% of the data falls within 0.67 standard deviations from the mean, find the lower and upper quartile scores for this test.

• A) 299.33 and 300.67
• B) 273.2 and 326.8
• C) 260 and 340
• D) 150 and 450

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Definitions:

Operating Expenses

The ongoing costs for running a business, excluding the cost of goods sold, such as rent, utilities, and salaries.

Profitability

The ability of a business to generate earnings compared to its expenses and other relevant costs, expressed as a percentage or profit margin.

Short-term Notes Payable

Debt obligations that are due to be paid within a year, often used for working capital purposes or to finance short-term liabilities.

Interest Charges

Costs incurred for borrowing money, calculated as a percentage of the principal amount loaned.