Why is `pop()` the only one of `del`, `pop`, and `remove` that hands the removed value back to you?
Short drills on what this video just taught. Write the code, run the checks, and reveal the answer only if you are stuck.
readings holds seven sensor readings. Delete the single reading that sits at the middle position of the row, leaving the other six untouched and in their original order. Change the existing list in place rather than typing out a new one, so the result stays in readings.
(Hint: del keys on position, and indices start at 0.)