Get aveages for last few days
I am making a new spreadsheet to record daily blood pressure readings. Each
day's readings go into a row below the previous day's readings. I can use
"=average" to get the average for all entries. Is there a function or other
means of getting the average for, for instance, the last 30 entries, which
would be for the last 30 days?
Thanks in advance!
Tim
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