Question:
Researchers compare the body composition of cattle feeding
Last updated: 7/26/2022
![Researchers compare the body composition of cattle feeding](https://media.kunduz.com/media/sug-question/raw/51646739-1658849859.2678714.jpeg?h=512)
Researchers compare the body composition of cattle feeding on a grain diet with that of cattle feeding on a grass diet. This method of gathering data is classified as (1)a census. (2)a sample survey (3)an experiment. (4)an observational study.