
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The school organized a spring outing and arranged three cars for the ninth grade. Xiaoming and Xiaohui can choose any one of these three cars to ride in.

1. Use a tree diagram (or list method) to represent all possible results of Xiaoming and Xiaohui riding in the cars (denoted as A, B, C).
2. What is the probability that Xiaoming and Xiaohui ride in different cars?

Present the answer in LaTex format: \boxed{Your answer}
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