6.55 Paths to school You have two possible paths to reach your school. Path A is 1.5 km long and path B is 1.3 km long. Each day, the probability you choose path A to reach school is 3/4 and this probability is 1/2 when you choose your path to return.

a. List all the possible combinations of paths to reach your school and return in a given day.

b. Find the probability of each combination of paths listed in part a.

c. What is the average distance you cover in both directions in a given day?