Question

Question 6 A researcher wants to determine if preschool attendance is associated with Select one answer high school graduation for low-income students. She randomly assigns low- points income children to two groups; one group will attend preschool program, the second group will not attend preschool. The researcher plans to follow the children in the study for 20 years and observe whether or not they graduate from high school. Which of the following is the explanatory variable in this study? A. O Whether or not a subject graduates high school B. O Whether or not a subject attends preschool C. O The length of time it takes a subject to graduate high school D. ︵ The income status of the children Question 7 A study seeks to answer the question, "Does Vitamin C level in the breast milk Select one answer. of new mothers reduce the risk of allergies in their breastfed infants?" The so points study concluded that high levels of vitamin C (measured in milligrams) were associated with a 30 percent lower risk of the presence of allergies in the infants. In this scenario, "presence of allergies" is what type of variable? A. Categorical B. Quantitative

Please double check answers I asked already recieved the wrong info.

Answer 1