Hi my name is Kaylee and im 14 in class 8 also
Answer:
It is a Class I freight railroad operating in the eastern United States and the Canadian provinces of Ontario and Quebec. The railroad operates approximately 21,000 route miles of track. The company operates as the leading subsidiary of CSX Corporation, a Fortune 500 company headquartered in Jacksonville, Florida. You will need a conductors and engineers degree/A National Diploma or GED Certificate is a prerequisite as well as having a driver’s license.
Answer:
C. a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts
Explanation:
From the question, we are informed about An observational study that was conducted in inner-city Boston approximately four years ago demonstrated that high-school students who consumed more than five cans of non-diet soda every week were between 9 and 15-percent likelier to engage in an aggressive act compared with counterparts who drank less non- diet soda. In this case, we can reliably conclude that a third variable, such as students' home environment, must have caused students to both drink more non-diet soda and engage in aggressive acts.
Observational studies can be regarded as studies whereby
researchers make observation about different effect of factors such as
risk factor, home, as well as environment and diagnostic test that affects the experiment. In observational studies Variables are very crucial, A variable can be anything that that is liable to change, it can change and it can be changed as well. They are factors which the observer can manipulate or control for when carrying out experiments.
Answer:
C.
Explanation:
It should be elapsed.
I think it’s elapsed because if something is elapsed, it means that it is the amount of time that something takes or is.
