The Variance of a Sample of 81 Observations Equals 64

question 143

Multiple Choice

The variance of a sample of 81 observations equals 64. The standard deviation of the sample equals

• A)9
• B)4096
• C)8
• D)6561

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Definitions:

Times-Interest-Earned Ratio

A metric used to evaluate a company's ability to meet its interest obligations, calculated as earnings before interest and taxes (EBIT) divided by interest expense.

EBIT

Earnings Before Interest and Taxes, a metric used to assess a company's financial performance, focusing purely on operational and production efficiency.

Net Profit

The amount of profit left over after all expenses and taxes have been subtracted from total revenue.

Pretax Profit

The earnings a company generates before taxes are deducted.