Averaging a range of numbers

Question

I'm looking to try and average a range of numbers, but instead of doing it by certain rows (that is, average rows A1 through A30), I'd like for Numbers to average cells if they fall into a certain numerical range (that is, average cells whose values are 1-30, but whose rows might be A1 through A70 or A1 through A42--you don't know). Since my cells are numerically ordered, I could go through and find myself the cells that fall into the range (is it A70 or A42?), but I have a few thousand rows so that's really not economical in terms of time. Could someone help me to figure out the function to average cells based on their numerical value?
Thanks!

Answer 1

Here's how you might set up the formula:
The formula in B3:
       =AVERAGEIFS(Table 1::A,Table 1::A,">"&B1,Table 1::A,"<"&B2)
It's a little tricky because you need the " " in the proper places.  You could hardcode the values into the formula itself with something like ">0" and "<31" but it's generally good practice to put the conditions in cells so you can vary them as needed.
SG