The graph below shows the numbers of cups of mango juice that are mixed with different numbers of cups of lemon-lime soda to make servings of mango soda: A graph is shown. The values on the x axis are 0, 1, 2, 3, 4, 5. The values on the y axis are 0, 10, 20, 30, 40, 50. Points are shown on ordered pairs 0, 0 and 1, 10 and 2, 20 and 3, 30 and 4, 40. These points are connected by a line. The label on the x axis is Lemon lime soda in cups. The title on the y axis is Mango juice in cups. What is the ratio of the number of cups of mango juice to the number of cups of lemon-lime soda? (5 points) 1:40 10:1 40:1 1:10

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?