Identify each of the following scenarios as examples of causation, positive correlation, and/or negative correlation, and explain your answers.

a. Most students who subscribe to online courses tend to perform better academically.

b. Most people who are doctors have poor handwriting.

c. Most people who live alone are good cooks.

d. Most girls who walk to school tend to be healthier than other girls.

e. The higher a student’s grades, the less likely he will travel in public buses.