Weighted Average Question
assume the weights are in B1:B100
=sumproduct(A1:A100,B1:B100)/sum(B1:B100)
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Regards,
Tom Ogilvy
"James" wrote in message
. ..
It is easy enough to find simple average with =average(a1:a100)
What is the easiest way to find a average?
Thanks
James
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