Examlex
If the number of dummy variables representing a qualitative variable equals the number of categories of this variable, one deals with the problem of perfect multicollinearity.
Variable Costs
Expenses that change in proportion to the activity of a business, such as materials and labor costs.
Fixed Costs
Expenses that do not change with the level of goods or services produced over the short term, such as rent, salaries, and insurances.
Selling Price
The amount of money for which a product or service is sold to customers.
Variable Costs
Costs that vary directly with the level of production or service volume, such as materials and labor.
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