求解一道数学

ggirl626

a certain roller coaster has 3 cars, and a passenger is equally likely to ride in any one 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


ANSWER: C

ggirl626

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