
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
Given that on each workday, the probabilities of persons A, B, and C needing to use a certain device are 0.4, 0.5, and 0.7, respectively, and that their needs for the device are independent of each other, the probability that at least one person needs to use the device on the same workday is ______.

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