
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
A middle school rings the preparation bell at 7:50 AM and the class bell at 8:00 AM. If student Xiao Ming arrives at school between 7:30 AM and 8:10 AM, and the probability of arriving at any moment within this time frame is equally likely, then the probability of Xiao Ming arriving before the class bell rings is ______.

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