Definition of dependent variable

dependent variable

an unknown variable that is to be predicted
using one or more independent variables

independent variable

a variable that, when changed, will
cause consistent, observable changes in another variable;
a variable used as the basis of predicting the value of a
dependent variable

Ordinary least squares (OLS)

regression analysis a statistical technique that minimizes the sum of the squared deviations between a dependent variable and one or more independent variables and provides the user
with a y-intercept and x-coefficients, as well as feedback such as R2 (explained
variation/total variation) t-statistics, p-values, etc.

Coefficient of determination

A measure of the goodness of fit of the relationship between the dependent and
independent variables in a regression analysis; for instance, the percentage of variation in the return of an
asset explained by the market portfolio return.

Lag

Payment of a financial obligation later than is expected or required, as in lead and lag. Also, the number
of periods that an independent variable in a regression model is "held back" in order to predict the dependent
variable.

Multiple regression

The estimated relationship between a dependent variable and more than one explanatory variable.

R squared (R^2)

Square of the correlation coefficient proportion of the variability explained by the linear
regression model. For example, an r squared of 75% means that 75% of the variability observed in the
dependent variable is explained by the independent variable.

Regression equation

An equation that describes the average relationship between a dependent variable and a
set of explanatory variables.

least squares regression analysis

a statistical technique that investigates the association between dependent and independent variables; it determines the line of "best fit" for a set of observations by minimizing the sum of the squares
of the vertical deviations between actual points and the
regression line; it can be used to determine the fixed and
variable portions of a mixed cost

multiple regression

a statistical technique that uses two or
more independent variables to predict a dependent variable

regression line

any line that goes through the means (or averages) of the set of observations for an independent variable and its dependent variables; mathematically, there is a line of “best fit,” which is the least squares regression line

simple regression

a statistical technique that uses only one independent variable to predict a dependent variable

Continuous random variable

A random value that can take any fractional value within specified ranges, as
contrasted with a discrete variable.

Dependent

Acceptance of a capital budgeting project contingent on the acceptance of another project.

Discrete random variable

A random variable that can take only a certain specified set of discrete possible
values - for example, the positive integers 1, 2, 3, . . .

Endogenous variable

A value determined within the context of a model.

Exogenous variable

A variable whose value is determined outside the model in which it is used. Also called
a parameter.

Independent project

A project whose acceptance or rejection is independent of the acceptance or rejection of
other projects.

Normal random variable

A random variable that has a normal probability distribution.

Path dependent option

An option whose value depends on the sequence of prices of the underlying asset
rather than just the final price of the asset.

Random variable

A function that assigns a real number to each and every possible outcome of a random experiment.

Variable

A value determined within the context of a model. Also called endogenous variable.

Variable annuities

Annuity contracts in which the issuer pays a periodic amount linked to the investment
performance of an underlying portfolio.

Variable cost

A cost that is directly proportional to the volume of output produced. When production is zero,
the variable cost is equal to zero.

Variable life insurance policy

A whole life insurance policy that provides a death benefit dependent on the
insured's portfolio market value at the time of death. Typically the company invests premiums in common
stocks, and hence variable life policies are referred to as equity-linked policies.

Variable price security

A security, such as stocks or bonds, that sells at a fluctuating, market-determined price.

Variable rate CDs

Short-term certificate of deposits that pay interest periodically on roll dates. On each roll
date, the coupon on the CD is adjusted to reflect current market rates.

Variable rated demand bond (VRDB)

Floating rate bond that can be sold back periodically to the issuer.

Variable rate loan

Loan made at an interest rate that fluctuates based on a base interest rate such as the
Prime Rate or LIBOR.

VARIABLE EXPENSES

Those that vary with the amount of goods you produce or sell. These may include utility bills, labor, etc.

Semi-variable costs

Costs that have both fixed and variable components.

Variable cost

A cost that increases or decreases in proportion with increases or decreases in the volume of production of goods or services.

Variable costing

A method of costing in which only variable production costs are treated as product costs and in which all fixed (production and non-production) costs are treated as period costs.

variable expenses

Expenses that change with changes in either sales volume
or sales revenue, in contrast to fixed expenses that remain the same
over the short run and do not fluctuate in response to changes in sales
volume or sales revenue. See also revenue-driven expenses and unitdriven
expenses.

Independent Projects

A situation where an increase (or decrease) in the benefits of one
project has no effect on the benefits of another project. Also, a
situation where the acceptance of one project does not preclude
the acceptance of another project.

decision variable

an unknown item for which a linear programming
problem is being solved

independent project

an investment project that has no specific
bearing on any other investment project

key variable

a critical factor that management believes will
be a direct cause of the achievement or nonachievement
of the organizational goals and objectives

slack variable

a variable used in a linear programming problem
that represents the unused amount of a resource at
any level of operation; it is associated with less-than-orequal-
to constraints

surplus variable

a variable used in a linear programming problem that represents overachievement of a minimum requirement; it is associated with greater-than-or-equal-to constraints

variable cost

a cost that varies in total in direct proportion
to changes in activity; it is constant on a per unit basis

variable costing

a cost accumulation and reporting method
that includes only variable production costs (direct material,
direct labor, and variable overhead) as inventoriable
or product costs; it treats fixed overhead as a period cost;
is not acceptable for external reporting and tax returns

variable cost ratio

the proportion of each revenue dollar
represented by variable costs; computed as variable costs
divided by sales or as (1 - contribution margin ratio)

variable overhead efficiency variance

the difference between budgeted variable overhead based on actual input activity and variable overhead applied to production

variable overhead spending variance

the difference between total actual variable overhead and the budgeted amount of variable overhead based on actual input activity

Variable cost

A cost that changes in amount in relation to changes in a related activity.
Variance
The difference between an actual measured result and a basis, such as a budgeted amount.

variable costs

Costs that change as the level of output changes.

Independent Broker

This is a provincial government licensed independent businessperson who usually represents five or more life insurance companies in a sales and service capacity and who is paid a commission by those life insurance companies for sales and service of life insurance products. We for example, have been in business for 12 years and regularly place new business with over twenty different life insurance companies.

Variable Annuity

A form of annuity policy under which the amount of each benefit is not guaranteed or specified. The amounts fluctuate according to the earnings of a separate investment account.

Simple linear regression

A regression analysis between only two variables, one dependent and the other explanatory.

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