Urgente 7. Un cuerpo irregular se introduce dentro de una probeta que inicialmente tieneun volumen de 20 ml como muestra la figura Después de la experiencia podemos afirmar que a) El volumen del cuerpo es cero. b) El volumen del cuerpo es 24 ml. c) El volumen del cuerpo es 3 ml. d) El volumen del cuerpo es igual al iniciar la experiencia

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?