Farrah is designing an experiment in an effort to determine how the environmental noise level people are exposed to affects their hearing. In the experiment, Farrah is collecting these data by researching the average number of decibels a person is exposed to in a day, using their smart phones. She is then testing each participant’s hearing level with a hearing test and giving them a score from 1–100, depending on how well they hear the various tones. What is the independent variable in Farrah’s experiment?(1 point)
Responses
the participant’s age
the participant’s age
the number of days the experiment lasts
the number of days the experiment lasts
the score on the hearing test
the score on the hearing test
the average decibels a person is exposed to daily....