Weighted Average Question

  • Thread starter Thread starter James
  • Start date Start date
J

James

It is easy enough to find simple average with =average(a1:a100)

What is the easiest way to find a average?

Thanks

James
 
assume the weights are in B1:B100
=sumproduct(A1:A100,B1:B100)/sum(B1:B100)
 
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