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Find the average and uncertainty of the length of the table?

  1. Oct 2, 2005 #1
    I have two measurements for the length of a table (the table is not perfect so it is prudent to measure it on both sides). I get a +/- b and c +/- d as the measurements. Suppose b does not equal d. How can I find the average and uncertainty of the length of the table?
     
  2. jcsd
  3. Oct 2, 2005 #2

    Integral

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    Use the larger of the 2 error values.
     
  4. Oct 2, 2005 #3

    HallsofIvy

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    The "average" is, of course, the average of the two a and c measurements. The uncertainty is, as Integral said, the larger of the two errors.
     
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