The Time That It Takes a Student to Walk from His

question 40

Multiple Choice

The time that it takes a student to walk from his dorm room to his math classroom has an approximate normal distribution with a mean of 8 minutes and a standard deviation of 0.4 minutes. What is the Probability that the student will take between 8.4 and 9.2 minutes to walk to class? Give your answer As a percentage.

• A) 2.5%
• B) 15.85%
• C) 95%
• D) 99.7%
• E) None of the above.

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Definitions:

Du Pont Equation

A formula that breaks down the Return on Equity (ROE) into three key components: profit margin, asset turnover, and financial leverage, allowing for a deeper analysis of what drives a company's ROE.

Inventory Turnover

A ratio showing how many times a company's inventory is sold and replaced over a period, indicating the efficiency of inventory management.

Gross Margin

A financial metric indicating the difference between revenue and the cost of goods sold (COGS), expressed as a percentage of revenue, highlighting the efficiency of a company in managing production costs relative to sales.

Balance Sheet

An overview presenting a company's financial position, including assets, liabilities, and the equity of shareholders at a specified time.