I'm sorry, but I don't understand your distinction between "ANY" customer
and "total number" of customers.

Could you give an example of your datalist, where that difference would be
evident?
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Regards,

RD
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"Metolius Dad" wrote in message
...
Hi RD

This doesn't seem to be working. It DOES count the number of times during
the year that ANY customers were in on a Tuesday but I wanted something that
counted the total number of customers in on all of the Tuesdays.

Thank you
Sam

"Ragdyer" wrote:

Try this for total number of Tuesday customers:

=SUMPRODUCT((WEEKDAY(A1:A365)=3)*(B1:B365<""))

And try this for the average:

=SUMPRODUCT((WEEKDAY(A1:A365)=3)*(B1:B365<""))/SUMPRODUCT(--(WEEKDAY(A1:A36
5)=3))
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HTH,

RD

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"Metolius Dad" wrote in message
...
Column A has dates in the year. Col B has customers on that date. What
formula can I use to find the total number of customers on all the
Tuesdays?
Average number for each Tuesday?

TIA, I appreciate you folks being there.
Sam Beardsley