Question

A dependent variable is a. directly changed by the experimenter. b. manipulated by changes to the independent variable. c. a variable that is kept constant. d. a variable that is used as a control.

Answer 1

Hi there!

A dependent variable is one that is changed, when the independent variable changes.

For example, if we wanted to calculate how many dollars we've earned in a given amount of time, time would be the independant variable, because it is a constant and is not affected by how much many we earn. The amount of money we earned is directly affected by the independent variable, time.

Your answer is b.

Hope I helped!

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Answer 2

Answer:- Option b. is the right answer. A dependent variable is manipulated by changes to the independent variable.

Explanation:-

In mathematical modelling or scientific research  a variable is defined as a term that has a quantity that varies. There are two kinds of variables:- 1) dependent variables 2) independent variables.

A independent variable can be change by the experimenter to check the effects on dependent variables which is observed by the him in a scientific experiment.

Thus, A dependent variable is manipulated by changes to the independent variable.