1.) The graph below shows the value of Moe's motorcycle given the number of
thousands of miles driven. Use the
graph to answer the questions.
a. Is the value of the graph
linear or non-linear?
Moe's Motorcycle Value
y
What does that mean in
10,000
terms of its value?
8,000
$
6,000
Value of motorcycle ($)
4,000
2,000
0
х
0 10 20 30 40 50
Miles driven (in thousands)
b. What price would you
predict that Moe
purchased the bike for if
it had zero miles driven?

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?