Calculate the Variance of a Sample for Which $$n = 5 , \quad \sum x ^ { 2 } = 1320 , \quad \sum { x } = 80$$

question 114

Multiple Choice

Calculate the variance of a sample for which $$n = 5 , \quad \sum x ^ { 2 } = 1320 , \quad \sum { x } = 80$$

• A) 10.00
• B) 8.00
• C) 326.00
• D) 3.16

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Definitions:

Average Operating Assets

The average value of the assets used in the day-to-day operations of a business, calculated over a certain period of time.

Sales

The total revenue generated from selling goods or services.

Variable Expenses

Costs that vary in direct proportion with the level of production or sales volume, such as raw materials and sales commissions.

Traceable Fixed Expenses

Fixed costs that are directly associated with a specific department or product, and can be directly traced to it.