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The variable not related to the purpose of th study but may affect the dependent variable are termed as extraneous variable true or false?
Wiki User
∙ 9y ago
False: they are called exogenous.
Wiki User
∙ 9y ago
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Is sandpaper a dependent variable?
I really can not answer this question. Variables represent outcomes, properties, qualities or events. A good example of a dependent variable related to sandpaper is the amount of wood is removes. Now, this variable will depend on many factors. Can you think of some? a) The amount of time that you sand b) The roughness of the sandpaper c) The size of the piece of wood you are sanding d) The hardness of the wood you are sanding e) The pressure that you apply when you are sanding I can come up with many more independent variables if I include sanding by hand or using a machine.
Regression analysis is a statistical procedure for developing a mathematical equation that describes how?
one dependent and one or more independent variables are related.
When is a bar graph useful?
when a sets of data can be separated by 2 orders of variables, which are the independent & dependent variables.
When you introduce more than one independent variable into a linear regression analysis?
Generally, when the dependent variable appears to be the result of more than one independent variables, a multiple regression model may be suitable. It is difficult to justify adding an additional variable, that does not significantly reduce the residual error of the fit. The setting of thresholds to justify addition of variables is in the area of "stepwise regression." The data must be adequate and consistent with the assumption of independent variables. I note from the first related link: Most authors recommend that one should have at least 10 to 20 times as many observations (cases, respondents) as one has variables, otherwise the estimates of the regression line are probably very unstable and unlikely to replicate if one were to do the study over. See related links. Many more are available in the Internet. Also, many books have been written on the multiple regression- proper and improper use.
What is a iid sampling?
This is an abbreviation for independent and identically distributed. In the mathematical analysis of samples, it is convenient to state that each data value in the sample is a iid random variable. See related link.
How is the independent variable and the dependent variable related?
The independent variable is that which the investigator changes, which results in the dependant variable which you then measure.
How are dependent variables and independent variable the related?
Independent variables can take values within a given boundary. The dependent variable will take values based on the independent variable and a given relationship at which the former can take its values.
How are independent and dependent variable related?
Independent variables can take values within a given boundary. The dependent variable will take values based on the independent variable and a given relationship at which the former can take its values.
How are the independent and dependent variables related?
Independent variables can take values within a given boundary. The dependent variable will take values based on the independent variable and a given relationship at which the former can take its values.
What are dependent and independent variables and how are they usually related to each other in a problem or situation?
a DEPENDENT variable is one of the two variables in a relationship.its value depends on the other variable witch is called the independent variable.the INDEPENDENT variable is one of the two variables in a relationship . its value determines the value of the other variable called the independent variable.
What is an easy definition of a dependent variable?
The term "dependent variable" will have different meaning depending on whether it is used in the context of a mathematical expression or statistical experiment. As given in the related link: "In a statistics experiment, the dependent variable is the event studied and expected to change whenever the independent variable is altered." If we are conducting an experiment, where we believe "A" affects "B", for instance eating a lot of chocolate causes pimples, then "A" , eating chocolate is the independent variable and " B" is the event of getting pimples. Other definitions exists which convey the same concept. Other definitions may state that the dependent variable is the attribute or property being measured or identified and is the variable that is expected to change with alterations (manipulation) of the independent variable. See related link.
What is independent variables?
an independent variable is a variable that changes the dependent variable.___________________________________________________Independentvariableis:a factor or phenomenon thatcausesorinfluencesanotherassociatedfactor or phenomenon called adependent variable. For example,incomeis an independentvariablebecause it causes and influences another variableconsumption. In a mathematicalequationormodel, the independent variable is the variable whosevalueis given. In anexperiment, it is the controlledcondition(that is allowed tochangein asystematicmanner) whose effect on thebehaviorof a dependent variable is studied. Also calledcontrolled variable,explanatory variable, orpredictor variable.
What does participant variable mean?
A participant variable is a characteristic or trait of the individuals taking part in a research study that may influence the outcomes being measured. These variables are important to consider because they can impact the results and interpretation of the study findings. Researchers often need to control for participant variables to ensure the validity and reliability of their results.
How is y related to x?
"Y" is the dependent variable and "X" is the independent variable. This means that the value of "Y" is determined specifically by a function when applied to the value of "X", which can be any number.
How is the independent variable related to the dependent variable?
The independent variable is the (x) axis or horizontal part of a graph. The dependant is the vertical (y) axis. The independent variable can change but the dependant can't, such as x=nightly sleep time and y=hours in 1 day.
What is the dependent variable for how does salt affect the freezing point of water?
The concentration of the salt solution, or salinity. It changes as shown in the related link below.
What is the difference between the controlled variable and an independent variable?
A controlled variable is one which you try to keep constant. The independent variable is the on that you change. The dependent variable is the one you measure. For instance, how much will a drink cool down in one minute when you add a certain number of ice cubes to it? The independent variable is the number of ice cubes. The dependent variable is the temperature drop. There are many possible controlled variables: the starting temp of the drink, the size of the ice cubes, the type of glass, the air temperature, and so on. See related link below.
