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Suppose that the mean for some data is 75 mm and the standard deviation is 10 mm. The distribution for this data is not necessarily normal.

Is it possible to determine the probability of the distance being greater than 73 mm?

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    You can not determine the probability, but using a one sided [Chebyshev inequality](http://en.wikipedia.org/wiki/Chebyshev's_inequality) you can get bounds. I suggest you play around by considering different distributions where your data can only take two values to see how different the answers can be. What is the max/min that you can make it for these limited distributions?2012-10-04

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