Q2 :
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 probability that the passerger will ride in each of the 3 cars?
A. 0
B. 1/9
C. 2/9
D. 1/3
E. 1
对我的难度有2:
１．一开始没看懂题意, 做错; 后再三细读, 似懂非懂, 给帮忙的人也都解释糊涂了, 望nn能给予题意翻译, 以正视听;
2. 懂得是多次重复独立试验后, 因为没有确定k的值,所以,怎么也得不出答案的2/9. | 
