In science, a variable is something that can be changed, measured or controlled in an experiment. Scientists look at variables to understand how they affect things. A variable is any one of the things ...

1) Come up with a question to explore. 2) Make a hypothesis or prediction about the results of the experiment. 3) Determine the methods involved in conducting the experiment. 4) Acquire necessary ...

Marketing research professionals often use inferential or descriptive statistics to guide major marketing decisions. There are a number of statistical tests that explore the relationship between the ...