My belief is if you took (hypothetically) 100 9s and 100 10s, cracked them all out and resubmitted them, there would be no statistical correlation between the first and the second grades.
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Net 54-- the discussion board where people resent discussions. 
My avatar is a sketch by my son who is an art school graduate. Some of his sketches and paintings are at
https://www.jamesspaethartwork.com/
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