How can I add a 'Line of Best Fit' on my iMac M1 Numbers app?
I have created a scatter chart in Numbers on my M1 Mac. I now want to add a Line of Best Fit. There's nothing in Help, so I tried the Web. Very little there, but one user says I have to open "the Inspector." I've been unable to find this. Can you either tell me where it is or suggest some other way to proceed, please? Thank you.
[Re-Titled by Moderator]
Original Title: Line of Best Fit
iMac 24″, macOS 15.5