Probability of Thermal Fluctuations Lifting 1g Stamp 1μm+

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Homework Statement


Estimate the probability that a stamp with mass 1 gram lying on a table is lifted 1 \mu m or higher by thermal fluctuations.


Homework Equations


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The Attempt at a Solution


I'm not sure how to start. What should I think about, what is relevant here? I feel completely lost really.
 
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The probability is 1 if you wait long enough (neglecting decay of the table and stamp).
 
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