|First off, please do not post in all caps. All caps is the internet equivalent of yelling and nobody likes to be yelled at.|
Second, this sounds very much like a homework problem. It the un-official policy of this forum to not provide direct, final answers to homework problems but to help lead the student towards the answer.
In this case, I might consider finding the time difference between each incident, then average those differences. Once I had that average, I just might use it for something.
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