It is a direct [linear] proportionality.
direct proportion
cause a change
the types of variables are three the constant,manipulated and responding...
The covered jar was the manipulated variable and the responding variable was the result: No maggots.
The covered jar was the manipulated variable and the responding variable was the result: No maggots.
the controlled variables are the factors that are kept constant during an experiment. if they are not kept constant then they may affect the outcome of the experiment. the manipulated variable is the factor that is different between the experiment and the control. the responding variable is the variable that is being measured in the experiment.
Straight line.
it is a direct relationship -eli martin
A controlled experiment is useful to examine the relationship between a manipulated variable and a responding variable.
the manipulated variable was the covered jars . The responding variable was the uncovered jars contained any maggots
That is the point of doing the experiment. You are trying to find out if there is any relationship at all.
straight line