{=AVERAGE(I2:I9176*(A2:A9176="philadelphia"))}
Is there something wrong with the array formula

Yes

Where A2:A9176 does not equal philadelphia, the result of the multiplication
is 0. So, your formula is including any of those 0s in the average.

Try this array formula** :

=AVERAGE(IF(A2:A9176="philadelphia",I2:I9176))

** array formulas need to be entered using the key combination of
CTRL,SHIFT,ENTER (not just ENTER). Hold down both the CTRL key and the SHIFT
key then hit ENTER.

--
Biff
Microsoft Excel MVP


"Carl_B" wrote in message
...

I have a worksheet with 5 city names in column A and dollar amounts in
column I.
I need to calculate the average amount for each city.
I use the array formula {=AVERAGE(I2:I9176*(A2:A9176="philadelphia"))}
and
get 621.45. I also did this using an average value calculation in a Pivot
Table and got the result 1987.54 for Philadelphia. The other 4 cities had
similar discrepancies.

Is there something wrong with the array formula (No I did not type the
brackets) or am I interpreting the two results incorrectly?
Thanks,
Carl