Simon, Steve wrote on Jun 18
"This is an interesting example. It seems to be related to the fact that the
average of a ratio is not equal to the ratio of the averages.
Perhaps this answer is more intuitive than the one you provided,"
You have summed up the position succintly - well done. I will be using it.
But I found that type of statement failed to convince the many
non-mathematicians whose maths is more shaky than mine.
Kev Hopayian
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