=SUMPRODUCT(--(2009!Q1:Q100>B1:B100),--(2009!Q1:Q100 < C1:C100),--(2009!I1:I100="A"))
A couple of ways...I have a related question, and this example is a good one to work with. I've been using SUMPRODUCT off and on over the years, but am failing to remember one trick:
What if, in the example above, I want the last condition to be equal to "A" OR "B"? What is the syntax?