Bavant Needs to Gather Some Additional Statistics on Its Customers

question 4

Short Answer

Bavant needs to gather some additional statistics on its customers. An employee at Bavant has created an initial query as shown in the acsampanying figure that calculates the average amount paid. The employee is unsure what aggregate functions to use for additional calculations.
Which aggregate function will find the standard deviation?

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Definitions:

Unit Product Cost

The total cost (direct materials, direct labor, and manufacturing overhead) divided by the number of units produced, representing the cost per individual unit.

Direct Labor Cost

Wages that are paid to workers who are directly involved in the production of goods or services.

Absorption Costing

An accounting method that includes all manufacturing costs—direct materials, direct labor, and both variable and fixed overhead—in the cost of a product.

Net Operating Income

A measure of a company's profitability from its core business operations, excluding taxes and interest expenses.