a certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that passenger rides the roller coaster. if a certain passenger is to ride the roller coaster 3 times, what is the probablity that the passenger will ride in each of the 3 cars? a. 0 b. 1/9 c. 2/9 d. 1/3 e. 1