All!
1) jamal's scores for the first two times he took the sats were 2050, and 2140. what must he score, at minimum, to average 2000 after three test - taking attempts?
2) ke yi's average for her first 3 tests is 88. what must she score on her last test to bring her average up to 90?

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?