Select any of the following scenarios where data should be collected through an observational study and not an experiment.
A) Destiny wishes to determine which type of pillow will reduce her partner's snoring.
B) Sasha wishes to determine the average salary of high school teachers across her home state during their first year of teaching.
C) An artist wishes to determine which detergent will best remove paint stains from their aprons.
D) Your neighborhood's HOA wishes to determine the average number of children per household in the neighborhood.
1 answer
B) Sasha wishes to determine the average salary of high school teachers across her home state during their first year of teaching.
1 answer