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The difference between the independent and dependent variables?
Independent variables are variables that can be changed in an experiment, while dependent variables are variables that change as a result of an experiment. In other words, independent variables are what you change, and dependent variables are the results of the experiment.
What is a dependnent variable?
A dependent variable depends on the independent variable. If you are doing an experiment about how temperature affects the heat of water then the independent variable would be the temperature, as that is what you are going to change, and the dependent variable the water as the temperature of the water depends on the temperature surrounding it.
What is a dependent variable that is in an experiment?
The independent variable in the experiment is the variable that occurs on its own and does not need anything for it to change, this that is why it is Independent e.g. years, time etc So the Dependant variable is the variable that relies on the independent variable to change and is normally represented on the Y axis. For example, if you had a graph that showed the amount of miles a car travelled over a certain time, the time is always going on and wont stop so its independent. The miles travelled depended upon the time, if the time did not go on the amount of miles travelled also couldn't go on, so it was dependant on the time to change for it to change. So it is the dependant variable.
The variable plottted on the horizontal x-axis is called?
You're generally going to put the independent variable on the horizontal axis, ie the variable that you decided to change in the experiment. If it is a continuous variable (ie a run of numbers) then you will be plotting a line graph and joining with a line or curve of best fit. If your variable is categoric ie has labels rather than numbers, or if it is whole-number only, then you're going to be plotting a bar graph.
Why is it important to limit the variables in an experiment?
To understand this you need to remember that the independent variable is a condition that you can change, and the dependent variable is the outcome that you see. If you have two independent variables, and you change both during an experiment, how are you going to tell which one caused the change to the outcome? So, you only change one independent variable at a time.
What do you do when performing an experiment?
1. What is being tested? (the aim of the experiment). 2. What is being changed? (the chosen variable). 3. What is going to be kept the same? (controlled variables). 4. What is going to be measured? (the measured variable). In general, you should ask how will your experiment help the earth, mankind, or people to accomplish a task.
What type of variables are in experiment?
the only variables in an experiment are the independent variables [the thing in an experiment your going to change. and the dependent variables [the thing in an experiment your going to measure.
What questions do you ask when performing an experiment?
1. What is being tested? (the aim of the experiment). 2. What is being changed? (the chosen variable). 3. What is going to be kept the same? (controlled variables). 4. What is going to be measured? (the measured variable). In general, you should ask how will your experiment help the earth, mankind, or people to accomplish a task.
What are the 3 scientific variables?
The three scientific variables are independent variables, dependent variables, and controlled variables. The independent variable is the variable that is manipulated or changed by the researcher. The dependent variable is the variable that is measured or observed in response to the changes in the independent variable. Controlled variables are the factors that are kept constant to ensure that they do not influence the relationship between the independent and dependent variables.
What does dependant variable mean?
See link for the Wikipedia article. The dependent variable is sometimes called response variable, or outcome variable. During what year of school, K thru 12, do kids experience the greatest average change in height (or weight)? You are "manipulating" what year of school a child is in. You aren't making any changes on this-- this is just your independent variable. You are going to measure height change for each child, so a starting and ending measure is needed. Height is the dependent variable.
What is a dependent variable?
MathematicsY is often used as the "dependent variable" which changes as the independent variable (X) changes, according to the defined function y = f(x).ExperimentationThe dependent variable is what will change in the experiment, based on changes made to the independentvariable. The constant or controlled variable is maintained so that the outcome is dependent on the changes to the factor being studied.Example : Determining growth of bacteria in various aqueous nutrient solutions.The growth rate (what you measure) is the dependent variable.The amount of a nutrient added is the independent variable.The temperature and humidity are the controlled variables, which are kept the same.Example: Time is an independent variable, no matter how fast you are going, the amount of time does not change over a specific interval. Distance is a dependent variable. The distance travelled is dependent on how fast you are going over that same interval.A dependent variable is a value that receives its magnitude due to the magnitude of the other variables in the "equation" or "test" or "experiment".* * * * *In many situations, though, there is no independent variable but two [inter-]dependent variables. This is particularly true of systems in which there is some sort of feedback. For example, changes in the rate of inflation affects the rate of unemploment and changes in the rate of unemployment affects inflation.A dependent variable is what you measure in the experiment and what is affected during the experiment.
What. Is a Dependent variable?
MathematicsY is often used as the "dependent variable" which changes as the independent variable (X) changes, according to the defined function y = f(x).ExperimentationThe dependent variable is what will change in the experiment, based on changes made to the independentvariable. The constant or controlled variable is maintained so that the outcome is dependent on the changes to the factor being studied.Example : Determining growth of bacteria in various aqueous nutrient solutions.The growth rate (what you measure) is the dependent variable.The amount of a nutrient added is the independent variable.The temperature and humidity are the controlled variables, which are kept the same.Example: Time is an independent variable, no matter how fast you are going, the amount of time does not change over a specific interval. Distance is a dependent variable. The distance travelled is dependent on how fast you are going over that same interval.A dependent variable is a value that receives its magnitude due to the magnitude of the other variables in the "equation" or "test" or "experiment".* * * * *In many situations, though, there is no independent variable but two [inter-]dependent variables. This is particularly true of systems in which there is some sort of feedback. For example, changes in the rate of inflation affects the rate of unemploment and changes in the rate of unemployment affects inflation.A dependent variable is what you measure in the experiment and what is affected during the experiment.
