
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 person wakes up from a nap and finds that his clock has stopped. He turns on the radio to listen to the hourly news broadcast. Calculate the probability that his waiting time does not exceed 15 minutes.

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