Here is the formula (entered as an array):
{=SUM((A1:A4=A2)*(B1:B4=B2)*C1:C4)}


Here is the table:

School Year NO. OF PHYSICALS
Jones 2008-2009 2
Sam 2008-2009
Alex 2008-2009


Why am I getting #Value instead of 2?


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Thanks
Shawn