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www.reference.com/article/calculate-variable-costs-263de6bbb96ce345

Ready Ratios states that variable costs are calculated by dividing marginal costs over units produced. Variable costs are expenses that vary according to production output, so they rise and fall with a company's level of production.

www.reference.com/article/calculate-variable-rates-f6e76f609759791

Variable interest rates are actually two rates added together. The first is a fixed rate called "margin" that is based on the credit worthiness of the borrower. The second rate varies and is tied to the movement of a specified index as stipulated in the loan contract.

www.reference.com/article/dependent-variable-df09439a99a5c4cc

In math, a dependent variable is one in an expression, equation or function that depends upon one or more other variables' values to determine its value. The dependent variable is usually isolated on one side of an equation. For example, "x" is the dependent variable in the equation x=y+1.

www.reference.com/article/variable-cost-741c99aae4359c1c

A variable cost is money that a company spends in direct proportion with its production output. As production goes up, so do the variable costs. If production drops, the variable costs drop as well. These differ from such fixed costs as advertising, rent, office supplies and insurance, which general

www.reference.com/science/controlled-variable-90609668d52c728d

A controlled variable is the element or feature that cannot be changed during the course of an experiment. The controlled variable is kept constant so the changes in other variables can be observed more easily. According to About.com, it is also sometimes referred to as the "constant" variable

www.reference.com/world-view/response-variable-14511ba1f409613c

In statistics, a response variable is the quantity that is being studied based on a number of factors, which are measured as explanatory variables. This is similar to the use of the dependent and independent variable classification.

www.reference.com/article/continuous-variable-e72f43d72f8eb22d

In statistics, a continuous variable refers to a variable that can contain all the possible values within its minimum and maximum ranges. All variables that are not considered continuous are called discrete variables.

www.reference.com/world-view/examples-continuous-variables-64478765a58a1ebb

Some examples of continuous variables are measuring people's weight within a certain range, measuring the amount of gas put into a gas tank or measuring the height of people. A continuous variable is any variable that can be any value in a certain range.

www.reference.com/science/variables-experiment-dc8ba20910aee47e

Variables are factors or quantities that may be change or controlled in a scientific experiment. The three types of variables in a science project or experiment are independent, controlled and dependent variables. The independent variable is the condition or factor that is changed in the experiment

www.reference.com/article/many-variables-should-experiment-39f1088953c5efe0

Ideally, an experiment should have an independent variable, a dependant variable, and a control variable. Researchers take steps to eliminate as many extraneous variable as possible, although eliminating all of them might be impossible in certain scenarios.

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