Which of the Following Is the Formula for the Variance $\frac { \sum ( X - \bar { X } ) } { N }$

question 37

Multiple Choice

Which of the following is the formula for the variance of a sample used to estimate the population variance?

• A) \(\frac { \sum ( X - \bar { X } ) } { N }\)
• B) \(\frac { \sum ( X - \bar { X } ) ^ { 2 } } { N }\)
• C) \(\frac { \sum ( X - \bar { X } ) } { N - 1 }\)
• D) \(\frac { \sum ( X - \bar { X } ) ^ { 2 } } { N - 1 }\)

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Definitions:

Accounts Receivable

Money owed to a business by its customers for goods or services that have been delivered or used but not yet paid for.

Accounts Payable

Accounts payable is the amount a company owes to suppliers or vendors for goods or services received but not yet paid for, representing a short-term liability.

Gross Profit

The difference between sales revenue and the cost of goods sold, indicating the efficiency of a company in managing its production and labor costs.

Net Sales

The revenue generated from sales of goods or services after deducting returns, allowances, and discounts.