Use the following to answer the next three questions. A st…
Use the following to answer the next three questions. A statistics major wanted to test the claim that it is easier to read words printed on colored paper than words printed on white paper. The statistics major collected a random sample of fifty 7th grade students and each student read the same one-page passage printed on either salmon-colored paper or white paper. The order of which colored paper they read first was randomly assigned. What is explanatory variable in this study?