In Google Sheets, I'm taking blood pressure readings and entering them into an entry sheet. It's useful to measure the pressure a few times (perhaps three) in short succession and then record the average or median of it.
Is there an easy way to keep the entry simple (without resorting to another sheet for calculations) but allow the user to enter 3 values, which then populate the cell with the computed result (say, the mean or median) of those 3 values into a single cell?