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2021-05-17

What is true about a dependent variable in an experiment?

What is true about a dependent variable in an experiment?

A dependent variable is the variable being tested in a scientific experiment. The dependent variable is ‘dependent’ on the independent variable. As the experimenter changes the independent variable, the change in the dependent variable is observed and recorded.

Is the dependent variable controlled by the experimenter?

The independent variable is the variable that is controlled and manipulated by the experimenter. The dependent variable is the variable that is measured by the experimenter. In our previous example, the scores on the test performance measure would be the dependent variable.

Is the Dependant variable controlled?

Independent variable – the variable that is altered during a scientific experiment. Dependent variable – the variable being tested or measured during a scientific experiment. Controlled variable – a variable that is kept the same during a scientific experiment.

How do you find a dependent variable?

The dependent variable is the one that depends on the value of some other number. If, say, y = x+3, then the value y can have depends on what the value of x is. Another way to put it is the dependent variable is the output value and the independent variable is the input value.

What type of variable is salary?

Nominal (Unordered categories) of Data For example, salary can be turned into a nominal variable by defining “high salary” as an annual salary of more than $200,000, “moderate salary” as less than or equal to $200,000 and more than $75,000, and “low salary” as less than or equal to $75,000.

What type of variable is speed?

A continuous random variable is a random variable which has an infinite number of values. Let s say you measure the speed (in miles per hour) of the first car to drive by your house.

What are two categorical variables?

There are two types of categorical variable, nominal and ordinal. A nominal variable has no intrinsic ordering to its categories. For example, gender is a categorical variable having two categories (male and female) with no intrinsic ordering to the categories. An ordinal variable has a clear ordering.

Is number of bedrooms categorical?

“Number of bedrooms” is now a categorical variable that places homes in two groups: one/two bedrooms and three/four bedrooms. Software often allows you to simply declare that a variable is categorical.