Marjorie is conducting a science experiment to measure the amount of pollution produced by cars that used gasoline containing different amounts of lead. Identify the dependent and independent variables.(1 point)

Question

Responses

i=
conducting a science experiment
d=
the amount of pollution
i equals conducting a science experiment d equals the amount of pollution

i=
gasoline containing different amounts of lead
d=
type of car
i equals gasoline containing different amounts of lead d equals type of car

i=
the amount of pollution
d=
gasoline containing different amounts of lead
i equals the amount of pollution d equals gasoline containing different amounts of lead

i=
gasoline containing different amounts of lead
d=
the amount of pollution

Answer 1

In Marjorie's experiment, the independent variable is the amount of lead in the gasoline, as this is what she changes in order to measure its effect. The dependent variable is the amount of pollution produced by the cars, as this is what she measures in response to changes in the independent variable.

So the correct identification would be:

i = gasoline containing different amounts of lead
d = the amount of pollution

Thus, the correct response is:
i equals gasoline containing different amounts of lead d equals the amount of pollution